Vulnerability Database

393,392

Total vulnerabilities in the database

CVE-2019-1748 — cisco / ios

Improper Certificate Validation

A vulnerability in the Cisco Network Plug-and-Play (PnP) agent of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to gain unauthorized access to sensitive data. The vulnerability exists because the affected software insufficiently validates certificates. An attacker could exploit this vulnerability by supplying a crafted certificate to an affected device. A successful exploit could allow the attacker to conduct man-in-the-middle attacks to decrypt and modify confidential information on user connections to the affected software.

  • Published: Mar 28, 2019
  • Updated: Oct 3, 2026
  • CVE: CVE-2019-1748
  • Severity: High
  • Exploit:
  • CISA KEV:

CVSS v3:

  • Severity: High
  • Score: 7.4
  • AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

CVSS v2:

  • Severity: Medium
  • Score: 5.8
  • AV:N/AC:M/Au:N/C:P/I:P/A:N
Software Affected versions
cisco / ios = 12.0(1)
cisco / ios = 12.0(1)t
cisco / ios = 12.0(1)t1
cisco / ios = 12.0(1)xe
cisco / ios = 12.0(1a)
cisco / ios = 12.0(2)
cisco / ios = 12.0(2)s
cisco / ios = 12.0(2)t
cisco / ios = 12.0(2)t1
cisco / ios = 12.0(2)xe
cisco / ios = 12.0(2)xe1
cisco / ios = 12.0(2)xe3
cisco / ios = 12.0(2)xe4
cisco / ios = 12.0(2a)
cisco / ios = 12.0(2a)t1
cisco / ios = 12.0(2b)
cisco / ios = 12.0(3)
cisco / ios = 12.0(3)s
cisco / ios = 12.0(3)t
cisco / ios = 12.0(3)t2
cisco / ios = 12.0(3)t3
cisco / ios = 12.0(3a)
cisco / ios = 12.0(3b)
cisco / ios = 12.0(3c)
cisco / ios = 12.0(3d)
cisco / ios = 12.0(4)
cisco / ios = 12.0(4)s
cisco / ios = 12.0(4)t
cisco / ios = 12.0(4)xe
cisco / ios = 12.0(4)xe2
cisco / ios = 12.0(4a)
cisco / ios = 12.0(4b)
cisco / ios = 12.0(5)
cisco / ios = 12.0(5)s
cisco / ios = 12.0(5)t
cisco / ios = 12.0(5)t1
cisco / ios = 12.0(5)xe
cisco / ios = 12.0(5)xe1
cisco / ios = 12.0(5)xe2
cisco / ios = 12.0(5)xe3
cisco / ios = 12.0(5)xe4
cisco / ios = 12.0(5)xe5
cisco / ios = 12.0(5)xe8
cisco / ios = 12.0(5)xt1
cisco / ios = 12.0(5a)
cisco / ios = 12.0(6)
cisco / ios = 12.0(6)s
cisco / ios = 12.0(6)s1
cisco / ios = 12.0(6)s2
cisco / ios = 12.0(6a)
cisco / ios = 12.0(6b)
cisco / ios = 12.0(7)
cisco / ios = 12.0(7)s
cisco / ios = 12.0(7)s1
cisco / ios = 12.0(7)t
cisco / ios = 12.0(7)t1
cisco / ios = 12.0(7)t2
cisco / ios = 12.0(7)t3
cisco / ios = 12.0(7)xk
cisco / ios = 12.0(7)xk1
cisco / ios = 12.0(7a)
cisco / ios = 12.0(8)
cisco / ios = 12.0(8)s
cisco / ios = 12.0(8)s1
cisco / ios = 12.0(8a)
cisco / ios = 12.0(8b)
cisco / ios = 12.0(9)
cisco / ios = 12.0(9)s
cisco / ios = 12.0(9)s8
cisco / ios = 12.0(9)st
cisco / ios = 12.0(9a)
cisco / ios = 12.0(10)
cisco / ios = 12.0(10)s
cisco / ios = 12.0(10)s1
cisco / ios = 12.0(10)s2
cisco / ios = 12.0(10)s3
cisco / ios = 12.0(10)s3b
cisco / ios = 12.0(10)s4
cisco / ios = 12.0(10)s5
cisco / ios = 12.0(10)s6
cisco / ios = 12.0(10)s7
cisco / ios = 12.0(10)s8
cisco / ios = 12.0(10)st
cisco / ios = 12.0(10)st1
cisco / ios = 12.0(10)st2
cisco / ios = 12.0(10a)
cisco / ios = 12.0(11)
cisco / ios = 12.0(11)s
cisco / ios = 12.0(11)s1
cisco / ios = 12.0(11)s2
cisco / ios = 12.0(11)s3
cisco / ios = 12.0(11)s4
cisco / ios = 12.0(11)s5
cisco / ios = 12.0(11)s6
cisco / ios = 12.0(11)st
cisco / ios = 12.0(11)st1
cisco / ios = 12.0(11)st2
cisco / ios = 12.0(11)st3
cisco / ios = 12.0(11)st4
cisco / ios = 12.0(11a)
cisco / ios = 12.0(12)
cisco / ios = 12.0(12a)
cisco / ios = 12.0(13)
cisco / ios = 12.0(13a)
cisco / ios = 12.0(14)
cisco / ios = 12.0(14a)
cisco / ios = 12.0(15)
cisco / ios = 12.0(15a)
cisco / ios = 12.0(15b)
cisco / ios = 12.0(16)
cisco / ios = 12.0(16a)
cisco / ios = 12.0(16b)
cisco / ios = 12.0(17)
cisco / ios = 12.0(17a)
cisco / ios = 12.0(18)
cisco / ios = 12.0(18b)
cisco / ios = 12.0(19)
cisco / ios = 12.0(19a)
cisco / ios = 12.0(19b)
cisco / ios = 12.0(20)
cisco / ios = 12.0(20a)
cisco / ios = 12.0(21)
cisco / ios = 12.0(21a)
cisco / ios = 12.0(22)
cisco / ios = 12.0(23)
cisco / ios = 12.0(24)
cisco / ios = 12.0(25)
cisco / ios = 12.0(26)
cisco / ios = 12.0(27)
cisco / ios = 12.0(28)
cisco / ios = 12.0(28)s4a
cisco / ios = 12.0(28a)
cisco / ios = 12.0(28b)
cisco / ios = 12.0(28c)
cisco / ios = 12.0(28d)
cisco / ios = 12.0(31)sz2
cisco / ios = 12.1(1)
cisco / ios = 12.1(1)t
cisco / ios = 12.1(1c)
cisco / ios = 12.1(2)
cisco / ios = 12.1(2)t
cisco / ios = 12.1(2b)
cisco / ios = 12.1(3)
cisco / ios = 12.1(3)t
cisco / ios = 12.1(3)xi
cisco / ios = 12.1(3b)
cisco / ios = 12.1(4)
cisco / ios = 12.1(4a)
cisco / ios = 12.1(4b)
cisco / ios = 12.1(4c)
cisco / ios = 12.1(5)
cisco / ios = 12.1(5)t
cisco / ios = 12.1(5)t4
cisco / ios = 12.1(5)t5
cisco / ios = 12.1(5)t7
cisco / ios = 12.1(5)t8
cisco / ios = 12.1(5)t8c
cisco / ios = 12.1(5)t9
cisco / ios = 12.1(5)t10
cisco / ios = 12.1(5)t12
cisco / ios = 12.1(5)t13
cisco / ios = 12.1(5)t15
cisco / ios = 12.1(5)t17
cisco / ios = 12.1(5)t18
cisco / ios = 12.1(5)t19
cisco / ios = 12.1(5)yb
cisco / ios = 12.1(5)yb2
cisco / ios = 12.1(5a)e5
cisco / ios = 12.1(5a)e6
cisco / ios = 12.1(5b)
cisco / ios = 12.1(5c)
cisco / ios = 12.1(5c)e11
cisco / ios = 12.1(5c)ex
cisco / ios = 12.1(5c)ex1
cisco / ios = 12.1(5e)
cisco / ios = 12.1(6)
cisco / ios = 12.1(6)e
cisco / ios = 12.1(6)e8
cisco / ios = 12.1(6)e12
cisco / ios = 12.1(6)ea1a
cisco / ios = 12.1(6)ea2
cisco / ios = 12.1(6)ea2a
cisco / ios = 12.1(6)ea2b
cisco / ios = 12.1(6)ea2c
cisco / ios = 12.1(6)ex
cisco / ios = 12.1(6a)
cisco / ios = 12.1(6b)
cisco / ios = 12.1(7)
cisco / ios = 12.1(7a)e5
cisco / ios = 12.1(7b)
cisco / ios = 12.1(7c)
cisco / ios = 12.1(8)
cisco / ios = 12.1(8)ea1b
cisco / ios = 12.1(8a)
cisco / ios = 12.1(8a)e
cisco / ios = 12.1(8b)e9
cisco / ios = 12.1(8b)e12
cisco / ios = 12.1(8b)e13
cisco / ios = 12.1(8b)e15
cisco / ios = 12.1(8b)e19
cisco / ios = 12.1(8b)e20
cisco / ios = 12.1(8b)ex4
cisco / ios = 12.1(8c)
cisco / ios = 12.1(9)
cisco / ios = 12.1(9)ea1a
cisco / ios = 12.1(9)ea1c
cisco / ios = 12.1(9)ea1d
cisco / ios = 12.1(9)ex
cisco / ios = 12.1(9a)
cisco / ios = 12.1(10)
cisco / ios = 12.1(10a)
cisco / ios = 12.1(11)
cisco / ios = 12.1(11b)
cisco / ios = 12.1(12)
cisco / ios = 12.1(12a)
cisco / ios = 12.1(12b)
cisco / ios = 12.1(13)
cisco / ios = 12.1(13a)
cisco / ios = 12.1(14)
cisco / ios = 12.1(15)
cisco / ios = 12.1(16)
cisco / ios = 12.1(17)
cisco / ios = 12.1(17a)
cisco / ios = 12.1(18)
cisco / ios = 12.1(19)
cisco / ios = 12.1(19)ea1b
cisco / ios = 12.1(19)ea1c
cisco / ios = 12.1(20)
cisco / ios = 12.1(20)ea1
cisco / ios = 12.1(20)ea1a
cisco / ios = 12.1(20)ea1b
cisco / ios = 12.1(20)ea2
cisco / ios = 12.1(20a)
cisco / ios = 12.1(21)
cisco / ios = 12.1(22)
cisco / ios = 12.1(22)ea1a
cisco / ios = 12.1(22)ea4
cisco / ios = 12.1(22)ea4a
cisco / ios = 12.1(22)ea6
cisco / ios = 12.1(22a)
cisco / ios = 12.1(22b)
cisco / ios = 12.1(22c)
cisco / ios = 12.1(24)
cisco / ios = 12.1(25)
cisco / ios = 12.1(26)
cisco / ios = 12.2(1)
cisco / ios = 12.2(1a)
cisco / ios = 12.2(1b)
cisco / ios = 12.2(1d)
cisco / ios = 12.2(2)xb9
cisco / ios = 12.2(3)
cisco / ios = 12.2(3d)
cisco / ios = 12.2(3g)
cisco / ios = 12.2(4)xl2
cisco / ios = 12.2(5)
cisco / ios = 12.2(5a)
cisco / ios = 12.2(5d)
cisco / ios = 12.2(6)
cisco / ios = 12.2(6a)
cisco / ios = 12.2(6b)
cisco / ios = 12.2(6c)
cisco / ios = 12.2(6d)
cisco / ios = 12.2(6e)
cisco / ios = 12.2(6f)
cisco / ios = 12.2(6g)
cisco / ios = 12.2(6h)
cisco / ios = 12.2(6i)
cisco / ios = 12.2(6j)
cisco / ios = 12.2(7)
cisco / ios = 12.2(7a)
cisco / ios = 12.2(7b)
cisco / ios = 12.2(7c)
cisco / ios = 12.2(7g)
cisco / ios = 12.2(8)zb
cisco / ios = 12.2(9)yo
cisco / ios = 12.2(9)yo1
cisco / ios = 12.2(9)yo2
cisco / ios = 12.2(9)yo3
cisco / ios = 12.2(9)yo4
cisco / ios = 12.2(10)
cisco / ios = 12.2(10a)
cisco / ios = 12.2(10b)
cisco / ios = 12.2(10d)
cisco / ios = 12.2(10g)
cisco / ios = 12.2(11)yz
cisco / ios = 12.2(11)yz1
cisco / ios = 12.2(11)yz2
cisco / ios = 12.2(11)yz3
cisco / ios = 12.2(12)
cisco / ios = 12.2(12a)
cisco / ios = 12.2(12b)
cisco / ios = 12.2(12b)m1
cisco / ios = 12.2(12c)
cisco / ios = 12.2(12d)
cisco / ios = 12.2(12e)
cisco / ios = 12.2(12f)
cisco / ios = 12.2(12g)
cisco / ios = 12.2(12h)
cisco / ios = 12.2(12h)m1
cisco / ios = 12.2(12i)
cisco / ios = 12.2(12j)
cisco / ios = 12.2(12k)
cisco / ios = 12.2(12l)
cisco / ios = 12.2(12m)
cisco / ios = 12.2(13)
cisco / ios = 12.2(13a)
cisco / ios = 12.2(13b)
cisco / ios = 12.2(13b)m1
cisco / ios = 12.2(13b)m2
cisco / ios = 12.2(13c)
cisco / ios = 12.2(13e)
cisco / ios = 12.2(14)sz
cisco / ios = 12.2(14)sz1
cisco / ios = 12.2(14)sz2
cisco / ios = 12.2(14)sz3
cisco / ios = 12.2(14)sz4
cisco / ios = 12.2(14)sz5
cisco / ios = 12.2(14)sz6
cisco / ios = 12.2(16)
cisco / ios = 12.2(16a)
cisco / ios = 12.2(16b)
cisco / ios = 12.2(16c)
cisco / ios = 12.2(16f)
cisco / ios = 12.2(17)
cisco / ios = 12.2(17a)
cisco / ios = 12.2(17b)
cisco / ios = 12.2(17d)
cisco / ios = 12.2(17e)
cisco / ios = 12.2(17f)
cisco / ios = 12.2(18)s
cisco / ios = 12.2(18)s1
cisco / ios = 12.2(18)s2
cisco / ios = 12.2(18)s3
cisco / ios = 12.2(18)s4
cisco / ios = 12.2(19)
cisco / ios = 12.2(19a)
cisco / ios = 12.2(19b)
cisco / ios = 12.2(19c)
cisco / ios = 12.2(20)s
cisco / ios = 12.2(20)s1
cisco / ios = 12.2(20)s2
cisco / ios = 12.2(20)s2a
cisco / ios = 12.2(20)s3
cisco / ios = 12.2(20)s4
cisco / ios = 12.2(20)s4a
cisco / ios = 12.2(20)s5
cisco / ios = 12.2(20)s6
cisco / ios = 12.2(21)
cisco / ios = 12.2(21a)
cisco / ios = 12.2(21b)
cisco / ios = 12.2(22)s
cisco / ios = 12.2(23)
cisco / ios = 12.2(23a)
cisco / ios = 12.2(23c)
cisco / ios = 12.2(23d)
cisco / ios = 12.2(23e)
cisco / ios = 12.2(23f)
cisco / ios = 12.2(24)
cisco / ios = 12.2(24a)
cisco / ios = 12.2(24b)
cisco / ios = 12.2(25)s
cisco / ios = 12.2(25)s1
cisco / ios = 12.2(25)s2
cisco / ios = 12.2(25)se
cisco / ios = 12.2(26)
cisco / ios = 12.2(26a)
cisco / ios = 12.2(26b)
cisco / ios = 12.2(27)
cisco / ios = 12.2(27)sbk9
cisco / ios = 12.2(27a)
cisco / ios = 12.2(27b)
cisco / ios = 12.2(28)
cisco / ios = 12.2(28a)
cisco / ios = 12.2(28b)
cisco / ios = 12.2(28c)
cisco / ios = 12.2(28d)
cisco / ios = 12.2(29)
cisco / ios = 12.2(29a)
cisco / ios = 12.2(31)
cisco / ios = 12.2(32)
cisco / ios = 12.2(37)
cisco / ios = 12.2(40)
cisco / ios = 12.2(40a)
cisco / ios = 12.2(46)
cisco / ios = 12.3(2)ja3
cisco / ios = 12.3(2)ja4
cisco / ios = 12.3(7)jx9
cisco / ios = 12.3(7)xi3a
cisco / ios = 12.3(8)jk
cisco / ios = 12.3(9)m0
cisco / ios = 12.3(9)m1
cisco / ios = 12.3(11)ja2
cisco / ios = 12.3(11)jx
cisco / ios = 12.3(11)jx1
cisco / ios = 12.3(11)yf2
cisco / ios = 12.4(11)md2
cisco / ios = 12.4(23c)jy
cisco / ios = 15.0(1)ey
cisco / ios = 15.0(1)ey2
cisco / ios = 15.0(2)ex2
cisco / ios = 15.0(2)ex8
cisco / ios = 15.0(2)se13
cisco / ios = 15.0(2)sqd8
cisco / ios = 15.0(2)sqd9
cisco / ios = 15.1(2)sg8a
cisco / ios = 15.1(3)mra3
cisco / ios = 15.1(3)svg3d
cisco / ios = 15.1(3)svi1b
cisco / ios = 15.1(3)svk4b
cisco / ios = 15.1(3)svk4c
cisco / ios = 15.1(3)svo1
cisco / ios = 15.1(3)svo2
cisco / ios = 15.1(3)svp1
cisco / ios = 15.2(1)e
cisco / ios = 15.2(1)e1
cisco / ios = 15.2(1)e2
cisco / ios = 15.2(1)e3
cisco / ios = 15.2(1)ey
cisco / ios = 15.2(1)sy
cisco / ios = 15.2(1)sy0a
cisco / ios = 15.2(1)sy1
cisco / ios = 15.2(1)sy1a
cisco / ios = 15.2(1)sy2
cisco / ios = 15.2(1)sy3
cisco / ios = 15.2(1)sy4
cisco / ios = 15.2(1)sy5
cisco / ios = 15.2(1)sy6
cisco / ios = 15.2(1)sy7
cisco / ios = 15.2(2)e
cisco / ios = 15.2(2)e1
cisco / ios = 15.2(2)e2
cisco / ios = 15.2(2)e3
cisco / ios = 15.2(2)e4
cisco / ios = 15.2(2)e5
cisco / ios = 15.2(2)e5a
cisco / ios = 15.2(2)e5b
cisco / ios = 15.2(2)e6
cisco / ios = 15.2(2)e7
cisco / ios = 15.2(2)e7b
cisco / ios = 15.2(2)e8
cisco / ios = 15.2(2)e9
cisco / ios = 15.2(2)e9a
cisco / ios = 15.2(2)e10
cisco / ios = 15.2(2)ea
cisco / ios = 15.2(2)ea1
cisco / ios = 15.2(2)ea2
cisco / ios = 15.2(2)ea3
cisco / ios = 15.2(2)eb
cisco / ios = 15.2(2)eb1
cisco / ios = 15.2(2)eb2
cisco / ios = 15.2(2)sc1
cisco / ios = 15.2(2)sc3
cisco / ios = 15.2(2)sc4
cisco / ios = 15.2(2)sy
cisco / ios = 15.2(2)sy1
cisco / ios = 15.2(2)sy2
cisco / ios = 15.2(2)sy3
cisco / ios = 15.2(2a)e1
cisco / ios = 15.2(2a)e2
cisco / ios = 15.2(2b)e
cisco / ios = 15.2(3)e
cisco / ios = 15.2(3)e1
cisco / ios = 15.2(3)e2
cisco / ios = 15.2(3)e3
cisco / ios = 15.2(3)e4
cisco / ios = 15.2(3)e5
cisco / ios = 15.2(3)ea
cisco / ios = 15.2(3)ea1
cisco / ios = 15.2(3a)e
cisco / ios = 15.2(3m)e2
cisco / ios = 15.2(3m)e7
cisco / ios = 15.2(3m)e8
cisco / ios = 15.2(4)e
cisco / ios = 15.2(4)e1
cisco / ios = 15.2(4)e2
cisco / ios = 15.2(4)e3
cisco / ios = 15.2(4)e4
cisco / ios = 15.2(4)e5
cisco / ios = 15.2(4)e5a
cisco / ios = 15.2(4)e6
cisco / ios = 15.2(4)ea
cisco / ios = 15.2(4)ea1
cisco / ios = 15.2(4)ea2
cisco / ios = 15.2(4)ea3
cisco / ios = 15.2(4)ea4
cisco / ios = 15.2(4)ea5
cisco / ios = 15.2(4)ea6
cisco / ios = 15.2(4)ea7
cisco / ios = 15.2(4)ec1
cisco / ios = 15.2(4)ec2
cisco / ios = 15.2(4)jaz1
cisco / ios = 15.2(4a)ea5
cisco / ios = 15.2(4m)e1
cisco / ios = 15.2(4m)e2
cisco / ios = 15.2(4m)e3
cisco / ios = 15.2(4n)e2
cisco / ios = 15.2(4o)e2
cisco / ios = 15.2(4o)e3
cisco / ios = 15.2(4p)e1
cisco / ios = 15.2(4q)e1
cisco / ios = 15.2(4s)e1
cisco / ios = 15.2(4s)e2
cisco / ios = 15.2(5)e
cisco / ios = 15.2(5)e1
cisco / ios = 15.2(5)e2
cisco / ios = 15.2(5)e2b
cisco / ios = 15.2(5)e2c
cisco / ios = 15.2(5)ea
cisco / ios = 15.2(5)ex
cisco / ios = 15.2(5a)e
cisco / ios = 15.2(5a)e1
cisco / ios = 15.2(5b)e
cisco / ios = 15.2(5c)e
cisco / ios = 15.2(6)e
cisco / ios = 15.2(6)e0a
cisco / ios = 15.2(6)e0b
cisco / ios = 15.2(6)e0c
cisco / ios = 15.3(0)sy
cisco / ios = 15.3(1)sy
cisco / ios = 15.3(1)sy1
cisco / ios = 15.3(1)sy2
cisco / ios = 15.3(1)sy3
cisco / ios = 15.3(2)s
cisco / ios = 15.3(2)s1
cisco / ios = 15.3(2)s2
cisco / ios = 15.3(3)jaa1
cisco / ios = 15.3(3)jc
cisco / ios = 15.3(3)jc1
cisco / ios = 15.3(3)jc2
cisco / ios = 15.3(3)jc3
cisco / ios = 15.3(3)jc4
cisco / ios = 15.3(3)jc5
cisco / ios = 15.3(3)jc6
cisco / ios = 15.3(3)jc8
cisco / ios = 15.3(3)jc9
cisco / ios = 15.3(3)jc14
cisco / ios = 15.3(3)jd
cisco / ios = 15.3(3)jd2
cisco / ios = 15.3(3)jd3
cisco / ios = 15.3(3)jd4
cisco / ios = 15.3(3)jd5
cisco / ios = 15.3(3)jd6
cisco / ios = 15.3(3)jd7
cisco / ios = 15.3(3)jd8
cisco / ios = 15.3(3)jd9
cisco / ios = 15.3(3)jd11
cisco / ios = 15.3(3)jd12
cisco / ios = 15.3(3)jd13
cisco / ios = 15.3(3)jd14
cisco / ios = 15.3(3)jd15
cisco / ios = 15.3(3)jd16
cisco / ios = 15.3(3)je
cisco / ios = 15.3(3)jf
cisco / ios = 15.3(3)jf1
cisco / ios = 15.3(3)jf2
cisco / ios = 15.3(3)jf4
cisco / ios = 15.3(3)jf5
cisco / ios = 15.3(3)jf6
cisco / ios = 15.3(3)jf7
cisco / ios = 15.3(3)jf8
cisco / ios = 15.3(3)jf9
cisco / ios = 15.3(3)jf35
cisco / ios = 15.3(3)jg
cisco / ios = 15.3(3)jg1
cisco / ios = 15.3(3)jh
cisco / ios = 15.3(3)jh1
cisco / ios = 15.3(3)ji
cisco / ios = 15.3(3)ji1
cisco / ios = 15.3(3)ji2
cisco / ios = 15.3(3)s
cisco / ios = 15.3(3)s1
cisco / ios = 15.3(3)s1a
cisco / ios = 15.3(3)s2
cisco / ios = 15.3(3)s2a
cisco / ios = 15.3(3)s3
cisco / ios = 15.3(3)s4
cisco / ios = 15.3(3)s5
cisco / ios = 15.3(3)s6
cisco / ios = 15.3(3)s6a
cisco / ios = 15.3(3)s7
cisco / ios = 15.3(3)s8
cisco / ios = 15.3(3)s8a
cisco / ios = 15.3(3)s9
cisco / ios = 15.3(3)s10
cisco / ios = 15.4(1)cg
cisco / ios = 15.4(1)cg1
cisco / ios = 15.4(1)s
cisco / ios = 15.4(1)s1
cisco / ios = 15.4(1)s2
cisco / ios = 15.4(1)s3
cisco / ios = 15.4(1)s4
cisco / ios = 15.4(1)sy
cisco / ios = 15.4(1)sy1
cisco / ios = 15.4(1)sy2
cisco / ios = 15.4(1)sy3
cisco / ios = 15.4(1)t
cisco / ios = 15.4(1)t1
cisco / ios = 15.4(1)t2
cisco / ios = 15.4(1)t3
cisco / ios = 15.4(1)t4
cisco / ios = 15.4(2)cg
cisco / ios = 15.4(2)s
cisco / ios = 15.4(2)s1
cisco / ios = 15.4(2)s2
cisco / ios = 15.4(2)s3
cisco / ios = 15.4(2)s4
cisco / ios = 15.4(2)sn
cisco / ios = 15.4(2)sn1
cisco / ios = 15.4(2)t
cisco / ios = 15.4(2)t1
cisco / ios = 15.4(2)t2
cisco / ios = 15.4(2)t3
cisco / ios = 15.4(2)t4
cisco / ios = 15.4(3)m
cisco / ios = 15.4(3)m1
cisco / ios = 15.4(3)m2
cisco / ios = 15.4(3)m3
cisco / ios = 15.4(3)m4
cisco / ios = 15.4(3)m5
cisco / ios = 15.4(3)m6
cisco / ios = 15.4(3)m6a
cisco / ios = 15.4(3)m7
cisco / ios = 15.4(3)m7a
cisco / ios = 15.4(3)m8
cisco / ios = 15.4(3)m9
cisco / ios = 15.4(3)m10
cisco / ios = 15.4(3)s
cisco / ios = 15.4(3)s0d
cisco / ios = 15.4(3)s0e
cisco / ios = 15.4(3)s0f
cisco / ios = 15.4(3)s1
cisco / ios = 15.4(3)s2
cisco / ios = 15.4(3)s3
cisco / ios = 15.4(3)s4
cisco / ios = 15.4(3)s5
cisco / ios = 15.4(3)s6
cisco / ios = 15.4(3)s6a
cisco / ios = 15.4(3)s7
cisco / ios = 15.4(3)s8
cisco / ios = 15.4(3)s9
cisco / ios = 15.4(3)sn1
cisco / ios = 15.4(3)sn1a
cisco / ios = 15.5(1)s
cisco / ios = 15.5(1)s1
cisco / ios = 15.5(1)s2
cisco / ios = 15.5(1)s3
cisco / ios = 15.5(1)s4
cisco / ios = 15.5(1)sn
cisco / ios = 15.5(1)sn1
cisco / ios = 15.5(1)sy
cisco / ios = 15.5(1)t
cisco / ios = 15.5(1)t1
cisco / ios = 15.5(1)t2
cisco / ios = 15.5(1)t3
cisco / ios = 15.5(1)t4
cisco / ios = 15.5(2)s
cisco / ios = 15.5(2)s1
cisco / ios = 15.5(2)s2
cisco / ios = 15.5(2)s3
cisco / ios = 15.5(2)s4
cisco / ios = 15.5(2)sn
cisco / ios = 15.5(2)t
cisco / ios = 15.5(2)t1
cisco / ios = 15.5(2)t2
cisco / ios = 15.5(2)t3
cisco / ios = 15.5(2)t4
cisco / ios = 15.5(2)xb
cisco / ios = 15.5(3)m
cisco / ios = 15.5(3)m0a
cisco / ios = 15.5(3)m1
cisco / ios = 15.5(3)m2
cisco / ios = 15.5(3)m2a
cisco / ios = 15.5(3)m3
cisco / ios = 15.5(3)m4
cisco / ios = 15.5(3)m4a
cisco / ios = 15.5(3)m4b
cisco / ios = 15.5(3)m4c
cisco / ios = 15.5(3)m5
cisco / ios = 15.5(3)m5a
cisco / ios = 15.5(3)m6
cisco / ios = 15.5(3)m6a
cisco / ios = 15.5(3)m7
cisco / ios = 15.5(3)s
cisco / ios = 15.5(3)s0a
cisco / ios = 15.5(3)s1
cisco / ios = 15.5(3)s1a
cisco / ios = 15.5(3)s2
cisco / ios = 15.5(3)s3
cisco / ios = 15.5(3)s4
cisco / ios = 15.5(3)s5
cisco / ios = 15.5(3)s6
cisco / ios = 15.5(3)s6a
cisco / ios = 15.5(3)s6b
cisco / ios = 15.5(3)s7
cisco / ios = 15.5(3)s7a
cisco / ios = 15.5(3)s7b
cisco / ios = 15.5(3)sn
cisco / ios = 15.5(3)sn0a
cisco / ios = 15.6(1)s
cisco / ios = 15.6(1)s1
cisco / ios = 15.6(1)s2
cisco / ios = 15.6(1)s3
cisco / ios = 15.6(1)s4
cisco / ios = 15.6(1)sn
cisco / ios = 15.6(1)sn1
cisco / ios = 15.6(1)sn2
cisco / ios = 15.6(1)sn3
cisco / ios = 15.6(1)t
cisco / ios = 15.6(1)t0a
cisco / ios = 15.6(1)t1
cisco / ios = 15.6(1)t2
cisco / ios = 15.6(1)t3
cisco / ios = 15.6(2)s
cisco / ios = 15.6(2)s0a
cisco / ios = 15.6(2)s1
cisco / ios = 15.6(2)s2
cisco / ios = 15.6(2)s3
cisco / ios = 15.6(2)s4
cisco / ios = 15.6(2)sn
cisco / ios = 15.6(2)sp
cisco / ios = 15.6(2)sp1
cisco / ios = 15.6(2)sp2
cisco / ios = 15.6(2)sp3
cisco / ios = 15.6(2)sp3b
cisco / ios = 15.6(2)sp4
cisco / ios = 15.6(2)sp5
cisco / ios = 15.6(2)t
cisco / ios = 15.6(2)t0a
cisco / ios = 15.6(2)t1
cisco / ios = 15.6(2)t2
cisco / ios = 15.6(2)t3
cisco / ios = 15.6(3)m
cisco / ios = 15.6(3)m0a
cisco / ios = 15.6(3)m1
cisco / ios = 15.6(3)m1a
cisco / ios = 15.6(3)m1b
cisco / ios = 15.6(3)m2
cisco / ios = 15.6(3)m2a
cisco / ios = 15.6(3)m3
cisco / ios = 15.6(3)m3a
cisco / ios = 15.6(3)m4
cisco / ios = 15.6(3)sn
cisco / ios = 15.6(4)sn
cisco / ios = 15.6(5)sn
cisco / ios = 15.6(6)sn
cisco / ios = 15.6(7)sn
cisco / ios = 15.7(3)m
cisco / ios = 15.7(3)m0a
cisco / ios = 15.7(3)m1
cisco / ios_xe = 3.3.0se
cisco / ios_xe = 3.3.0xo
cisco / ios_xe = 3.3.1se
cisco / ios_xe = 3.3.1xo
cisco / ios_xe = 3.3.2se
cisco / ios_xe = 3.3.2xo
cisco / ios_xe = 3.3.3se
cisco / ios_xe = 3.3.4se
cisco / ios_xe = 3.3.5se
cisco / ios_xe = 3.5.0e
cisco / ios_xe = 3.5.1e
cisco / ios_xe = 3.5.2e
cisco / ios_xe = 3.5.3e
cisco / ios_xe = 3.6.0ae
cisco / ios_xe = 3.6.0be
cisco / ios_xe = 3.6.0e
cisco / ios_xe = 3.6.1e
cisco / ios_xe = 3.6.2ae
cisco / ios_xe = 3.6.2e
cisco / ios_xe = 3.6.3e
cisco / ios_xe = 3.6.4e
cisco / ios_xe = 3.6.5ae
cisco / ios_xe = 3.6.5be
cisco / ios_xe = 3.6.5e
cisco / ios_xe = 3.6.6e
cisco / ios_xe = 3.6.7ae
cisco / ios_xe = 3.6.7be
cisco / ios_xe = 3.6.7e
cisco / ios_xe = 3.6.9ae
cisco / ios_xe = 3.6.9e
cisco / ios_xe = 3.6.10e
cisco / ios_xe = 3.7.0e
cisco / ios_xe = 3.7.1e
cisco / ios_xe = 3.7.2e
cisco / ios_xe = 3.7.3e
cisco / ios_xe = 3.7.4e
cisco / ios_xe = 3.7.5e
cisco / ios_xe = 3.7.7s
cisco / ios_xe = 3.8.0e
cisco / ios_xe = 3.8.1e
cisco / ios_xe = 3.8.2e
cisco / ios_xe = 3.8.3e
cisco / ios_xe = 3.8.4e
cisco / ios_xe = 3.8.5ae
cisco / ios_xe = 3.8.5e
cisco / ios_xe = 3.8.6e
cisco / ios_xe = 3.9.0as
cisco / ios_xe = 3.9.0e
cisco / ios_xe = 3.9.0s
cisco / ios_xe = 3.9.1as
cisco / ios_xe = 3.9.1e
cisco / ios_xe = 3.9.1s
cisco / ios_xe = 3.9.2be
cisco / ios_xe = 3.9.2e
cisco / ios_xe = 3.9.2s
cisco / ios_xe = 3.10.0ce
cisco / ios_xe = 3.10.0e
cisco / ios_xe = 3.10.0s
cisco / ios_xe = 3.10.1s
cisco / ios_xe = 3.10.2as
cisco / ios_xe = 3.10.2s
cisco / ios_xe = 3.10.2ts
cisco / ios_xe = 3.10.3s
cisco / ios_xe = 3.10.4s
cisco / ios_xe = 3.10.5s
cisco / ios_xe = 3.10.6s
cisco / ios_xe = 3.10.7s
cisco / ios_xe = 3.10.8as
cisco / ios_xe = 3.10.8s
cisco / ios_xe = 3.10.9s
cisco / ios_xe = 3.10.10s
cisco / ios_xe = 3.11.0s
cisco / ios_xe = 3.11.1s
cisco / ios_xe = 3.11.2s
cisco / ios_xe = 3.11.3s
cisco / ios_xe = 3.11.4s
cisco / ios_xe = 3.12.0as
cisco / ios_xe = 3.12.0s
cisco / ios_xe = 3.12.1s
cisco / ios_xe = 3.12.2s
cisco / ios_xe = 3.12.3s
cisco / ios_xe = 3.12.4s
cisco / ios_xe = 3.13.0as
cisco / ios_xe = 3.13.0s
cisco / ios_xe = 3.13.1s
cisco / ios_xe = 3.13.2as
cisco / ios_xe = 3.13.2s
cisco / ios_xe = 3.13.3s
cisco / ios_xe = 3.13.4s
cisco / ios_xe = 3.13.5as
cisco / ios_xe = 3.13.5s
cisco / ios_xe = 3.13.6as
cisco / ios_xe = 3.13.6bs
cisco / ios_xe = 3.13.6s
cisco / ios_xe = 3.13.7as
cisco / ios_xe = 3.13.7s
cisco / ios_xe = 3.13.8s
cisco / ios_xe = 3.13.9s
cisco / ios_xe = 3.14.0s
cisco / ios_xe = 3.14.1s
cisco / ios_xe = 3.14.2s
cisco / ios_xe = 3.14.3s
cisco / ios_xe = 3.14.4s
cisco / ios_xe = 3.15.0s
cisco / ios_xe = 3.15.1cs
cisco / ios_xe = 3.15.1s
cisco / ios_xe = 3.15.2s
cisco / ios_xe = 3.15.3s
cisco / ios_xe = 3.15.4s
cisco / ios_xe = 3.16.0as
cisco / ios_xe = 3.16.0bs
cisco / ios_xe = 3.16.0cs
cisco / ios_xe = 3.16.0s
cisco / ios_xe = 3.16.1as
cisco / ios_xe = 3.16.1s
cisco / ios_xe = 3.16.2as
cisco / ios_xe = 3.16.2bs
cisco / ios_xe = 3.16.2s
cisco / ios_xe = 3.16.3as
cisco / ios_xe = 3.16.3s
cisco / ios_xe = 3.16.4as
cisco / ios_xe = 3.16.4bs
cisco / ios_xe = 3.16.4cs
cisco / ios_xe = 3.16.4ds
cisco / ios_xe = 3.16.4es
cisco / ios_xe = 3.16.4gs
cisco / ios_xe = 3.16.4s
cisco / ios_xe = 3.16.5as
cisco / ios_xe = 3.16.5bs
cisco / ios_xe = 3.16.5s
cisco / ios_xe = 3.16.6bs
cisco / ios_xe = 3.16.6s
cisco / ios_xe = 3.16.7as
cisco / ios_xe = 3.16.7s
cisco / ios_xe = 3.17.0s
cisco / ios_xe = 3.17.1as
cisco / ios_xe = 3.17.1s
cisco / ios_xe = 3.17.3s
cisco / ios_xe = 3.17.4s
cisco / ios_xe = 3.18.0as
cisco / ios_xe = 3.18.0s
cisco / ios_xe = 3.18.0sp
cisco / ios_xe = 3.18.1asp
cisco / ios_xe = 3.18.1bsp
cisco / ios_xe = 3.18.1csp
cisco / ios_xe = 3.18.1gsp
cisco / ios_xe = 3.18.1hsp
cisco / ios_xe = 3.18.1isp
cisco / ios_xe = 3.18.1s
cisco / ios_xe = 3.18.1sp
cisco / ios_xe = 3.18.2asp
cisco / ios_xe = 3.18.2s
cisco / ios_xe = 3.18.2sp
cisco / ios_xe = 3.18.3asp
cisco / ios_xe = 3.18.3bsp
cisco / ios_xe = 3.18.3s
cisco / ios_xe = 3.18.3sp
cisco / ios_xe = 3.18.4s
cisco / ios_xe = 3.18.4sp
cisco / ios_xe = 3.18.5sp
cisco / ios_xe = 16.1.1
cisco / ios_xe = 16.1.2
cisco / ios_xe = 16.1.3
cisco / ios_xe = 16.2.1
cisco / ios_xe = 16.2.2
cisco / ios_xe = 16.3.1
cisco / ios_xe = 16.3.1a
cisco / ios_xe = 16.3.2
cisco / ios_xe = 16.3.3
cisco / ios_xe = 16.3.4
cisco / ios_xe = 16.3.5
cisco / ios_xe = 16.3.5b
cisco / ios_xe = 16.4.1
cisco / ios_xe = 16.4.2
cisco / ios_xe = 16.4.3
cisco / ios_xe = 16.5.1
cisco / ios_xe = 16.5.1a
cisco / ios_xe = 16.5.1b
cisco / ios_xe = 16.5.2
cisco / ios_xe = 16.6.1
cisco / ios_xe = 16.6.2

Frequently Asked Questions

A security vulnerability is a weakness in software, hardware, or configuration that can be exploited to compromise confidentiality, integrity, or availability. Many vulnerabilities are tracked as CVEs (Common Vulnerabilities and Exposures), which provide a standardized identifier so teams can coordinate patching, mitigation, and risk assessment across tools and vendors.

CVSS (Common Vulnerability Scoring System) estimates technical severity, but it doesn't automatically equal business risk. Prioritize using context like internet exposure, affected asset criticality, known exploitation (proof-of-concept or in-the-wild), and whether compensating controls exist. A "Medium" CVSS on an exposed, production system can be more urgent than a "Critical" on an isolated, non-production host.

A vulnerability is the underlying weakness. An exploit is the method or code used to take advantage of it. A zero-day is a vulnerability that is unknown to the vendor or has no publicly available fix when attackers begin using it. In practice, risk increases sharply when exploitation becomes reliable or widespread.

Recurring findings usually come from incomplete Asset Discovery, inconsistent patch management, inherited images, and configuration drift. In modern environments, you also need to watch the software supply chain: dependencies, containers, build pipelines, and third-party services can reintroduce the same weakness even after you patch a single host. Unknown or unmanaged assets (often called Shadow IT) are a common reason the same issues resurface.

Use a simple, repeatable triage model: focus first on externally exposed assets, high-value systems (identity, VPN, email, production), vulnerabilities with known exploits, and issues that enable remote code execution or privilege escalation. Then enforce patch SLAs and track progress using consistent metrics so remediation is steady, not reactive.

SynScan combines attack surface monitoring and continuous security auditing to keep your inventory current, flag high-impact vulnerabilities early, and help you turn raw findings into a practical remediation plan.