Vulnerability Database

393,392

Total vulnerabilities in the database

CVE-2017-12228 — cisco / ios

Improper Certificate Validation

A vulnerability in the Cisco Network Plug and Play application of Cisco IOS 12.4 through 15.6 and Cisco IOS XE 3.3 through 16.4 could allow an unauthenticated, remote attacker to gain unauthorized access to sensitive data by using an invalid certificate. The vulnerability is due to insufficient certificate validation by the affected software. 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 confidential information on user connections to the affected software. Cisco Bug IDs: CSCvc33171.

  • Published: Sep 29, 2017
  • Updated: Oct 3, 2026
  • CVE: CVE-2017-12228
  • Severity: Medium
  • Exploit:
  • CISA KEV:

CVSS v2:

  • Severity: Medium
  • Score: 4.3
  • AV:N/AC:M/Au:N/C:P/I:N/A:N
Software Affected versions
cisco / ios = 12.4(25e)jao3a
cisco / ios = 12.4(25e)jao20s
cisco / ios = 12.4(25e)jap1n
cisco / ios = 12.4(25e)jap9
cisco / ios = 15.0(2)ej
cisco / ios = 15.0(2)ej1
cisco / ios = 15.0(2)ex
cisco / ios = 15.0(2)ex1
cisco / ios = 15.0(2)ex2
cisco / ios = 15.0(2)ex3
cisco / ios = 15.0(2)ex4
cisco / ios = 15.0(2)ex5
cisco / ios = 15.0(2)ex8
cisco / ios = 15.0(2)ex10
cisco / ios = 15.0(2)ex13
cisco / ios = 15.0(2)ez
cisco / ios = 15.0(2)se1
cisco / ios = 15.0(2)se2
cisco / ios = 15.0(2)se3
cisco / ios = 15.0(2)se4
cisco / ios = 15.0(2)se5
cisco / ios = 15.0(2)se6
cisco / ios = 15.0(2)se7
cisco / ios = 15.0(2)se8
cisco / ios = 15.0(2)se9
cisco / ios = 15.0(2)se10
cisco / ios = 15.0(2)se10a
cisco / ios = 15.0(2)sqd7
cisco / ios = 15.0(2a)ex5
cisco / ios = 15.0(2a)se9
cisco / ios = 15.1(1)sy
cisco / ios = 15.1(1)sy1
cisco / ios = 15.1(1)sy2
cisco / ios = 15.1(1)sy3
cisco / ios = 15.1(1)sy4
cisco / ios = 15.1(1)sy5
cisco / ios = 15.1(1)sy6
cisco / ios = 15.1(2)sg7a
cisco / ios = 15.1(2)sy
cisco / ios = 15.1(2)sy1
cisco / ios = 15.1(2)sy2
cisco / ios = 15.1(2)sy3
cisco / ios = 15.1(2)sy4
cisco / ios = 15.1(2)sy4a
cisco / ios = 15.1(2)sy5
cisco / ios = 15.1(2)sy6
cisco / ios = 15.1(2)sy7
cisco / ios = 15.1(2)sy8
cisco / ios = 15.1(2)sy9
cisco / ios = 15.1(2)sy10
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(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)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)gc
cisco / ios = 15.2(2)ja
cisco / ios = 15.2(2)ja1
cisco / ios = 15.2(2)jax
cisco / ios = 15.2(2)jax1
cisco / ios = 15.2(2)jb
cisco / ios = 15.2(2)jb2
cisco / ios = 15.2(2)jb3
cisco / ios = 15.2(2)jb4
cisco / ios = 15.2(2)jb5
cisco / ios = 15.2(2)jb6
cisco / ios = 15.2(2)jn1
cisco / ios = 15.2(2)jn2
cisco / ios = 15.2(2)s
cisco / ios = 15.2(2)s0a
cisco / ios = 15.2(2)s0c
cisco / ios = 15.2(2)s1
cisco / ios = 15.2(2)s2
cisco / ios = 15.2(2)sng
cisco / ios = 15.2(2)snh1
cisco / ios = 15.2(2)sni
cisco / ios = 15.2(2)sy
cisco / ios = 15.2(2)sy1
cisco / ios = 15.2(2)sy2
cisco / ios = 15.2(2)t
cisco / ios = 15.2(2)t1
cisco / ios = 15.2(2)t2
cisco / ios = 15.2(2)t3
cisco / ios = 15.2(2)t4
cisco / ios = 15.2(2a)e1
cisco / ios = 15.2(2a)e2
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)ex
cisco / ios = 15.2(3)gc
cisco / ios = 15.2(3)gc1
cisco / ios = 15.2(3)t
cisco / ios = 15.2(3)t1
cisco / ios = 15.2(3)t2
cisco / ios = 15.2(3)t3
cisco / ios = 15.2(3)t4
cisco / ios = 15.2(3a)e
cisco / ios = 15.2(3m)e2
cisco / ios = 15.2(3m)e3
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)ea
cisco / ios = 15.2(4)ea1
cisco / ios = 15.2(4)ea3
cisco / ios = 15.2(4)ea4
cisco / ios = 15.2(4)ea5
cisco / ios = 15.2(4)ec
cisco / ios = 15.2(4)ec1
cisco / ios = 15.2(4)ec2
cisco / ios = 15.2(4)gc
cisco / ios = 15.2(4)gc1
cisco / ios = 15.2(4)gc2
cisco / ios = 15.2(4)gc3
cisco / ios = 15.2(4)ja
cisco / ios = 15.2(4)ja1
cisco / ios = 15.2(4)jb
cisco / ios = 15.2(4)jb1
cisco / ios = 15.2(4)jb2
cisco / ios = 15.2(4)jb3
cisco / ios = 15.2(4)jb3a
cisco / ios = 15.2(4)jb3b
cisco / ios = 15.2(4)jb3h
cisco / ios = 15.2(4)jb3s
cisco / ios = 15.2(4)jb4
cisco / ios = 15.2(4)jb5
cisco / ios = 15.2(4)jb5h
cisco / ios = 15.2(4)jb5m
cisco / ios = 15.2(4)jb6
cisco / ios = 15.2(4)jb7
cisco / ios = 15.2(4)jn
cisco / ios = 15.2(4)m
cisco / ios = 15.2(4)m1
cisco / ios = 15.2(4)m2
cisco / ios = 15.2(4)m3
cisco / ios = 15.2(4)m4
cisco / ios = 15.2(4)m5
cisco / ios = 15.2(4)m6
cisco / ios = 15.2(4)m6a
cisco / ios = 15.2(4)m7
cisco / ios = 15.2(4)m8
cisco / ios = 15.2(4)m9
cisco / ios = 15.2(4)m10
cisco / ios = 15.2(4)m11
cisco / ios = 15.2(4)s
cisco / ios = 15.2(4)s1
cisco / ios = 15.2(4)s2
cisco / ios = 15.2(4)s3
cisco / ios = 15.2(4)s3a
cisco / ios = 15.2(4)s4
cisco / ios = 15.2(4)s4a
cisco / ios = 15.2(4)s5
cisco / ios = 15.2(4)s6
cisco / ios = 15.2(4)s7
cisco / ios = 15.2(4m)e1
cisco / ios = 15.2(4m)e3
cisco / ios = 15.2(4n)e2
cisco / ios = 15.2(4o)e2
cisco / ios = 15.2(4p)e1
cisco / ios = 15.2(5)e
cisco / ios = 15.2(5)e1
cisco / ios = 15.2(5)e2a
cisco / ios = 15.2(5)e2b
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 = 15.3(1)s
cisco / ios = 15.3(1)s1
cisco / ios = 15.3(1)s2
cisco / ios = 15.3(1)sy
cisco / ios = 15.3(1)sy1
cisco / ios = 15.3(1)sy2
cisco / ios = 15.3(1)t
cisco / ios = 15.3(1)t1
cisco / ios = 15.3(1)t2
cisco / ios = 15.3(1)t3
cisco / ios = 15.3(1)t4
cisco / ios = 15.3(2)s
cisco / ios = 15.3(2)s1
cisco / ios = 15.3(2)s2
cisco / ios = 15.3(2)t
cisco / ios = 15.3(2)t1
cisco / ios = 15.3(2)t2
cisco / ios = 15.3(2)t3
cisco / ios = 15.3(2)t4
cisco / ios = 15.3(3)ja
cisco / ios = 15.3(3)ja1
cisco / ios = 15.3(3)ja1m
cisco / ios = 15.3(3)ja1n
cisco / ios = 15.3(3)ja4
cisco / ios = 15.3(3)ja5
cisco / ios = 15.3(3)ja6
cisco / ios = 15.3(3)ja7
cisco / ios = 15.3(3)ja8
cisco / ios = 15.3(3)ja10
cisco / ios = 15.3(3)ja11
cisco / ios = 15.3(3)ja76
cisco / ios = 15.3(3)ja77
cisco / ios = 15.3(3)jaa
cisco / ios = 15.3(3)jab
cisco / ios = 15.3(3)jax
cisco / ios = 15.3(3)jax1
cisco / ios = 15.3(3)jax2
cisco / ios = 15.3(3)jb
cisco / ios = 15.3(3)jb75
cisco / ios = 15.3(3)jbb
cisco / ios = 15.3(3)jbb1
cisco / ios = 15.3(3)jbb2
cisco / ios = 15.3(3)jbb4
cisco / ios = 15.3(3)jbb5
cisco / ios = 15.3(3)jbb6
cisco / ios = 15.3(3)jbb6a
cisco / ios = 15.3(3)jbb8
cisco / ios = 15.3(3)jbb50
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)jc7
cisco / ios = 15.3(3)jc50
cisco / ios = 15.3(3)jc51
cisco / ios = 15.3(3)jca7
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)jda3
cisco / ios = 15.3(3)je
cisco / ios = 15.3(3)je1
cisco / ios = 15.3(3)jn3
cisco / ios = 15.3(3)jn4
cisco / ios = 15.3(3)jn7
cisco / ios = 15.3(3)jn8
cisco / ios = 15.3(3)jn9
cisco / ios = 15.3(3)jnb
cisco / ios = 15.3(3)jnb1
cisco / ios = 15.3(3)jnb2
cisco / ios = 15.3(3)jnb3
cisco / ios = 15.3(3)jnb4
cisco / ios = 15.3(3)jnb6
cisco / ios = 15.3(3)jnc
cisco / ios = 15.3(3)jnc1
cisco / ios = 15.3(3)jnc4
cisco / ios = 15.3(3)jnd
cisco / ios = 15.3(3)jnd1
cisco / ios = 15.3(3)jnd2
cisco / ios = 15.3(3)jnd3
cisco / ios = 15.3(3)jnp
cisco / ios = 15.3(3)jnp1
cisco / ios = 15.3(3)jnp2
cisco / ios = 15.3(3)jpb
cisco / ios = 15.3(3)jpb1
cisco / ios = 15.3(3)jpb2
cisco / ios = 15.3(3)jpc2
cisco / ios = 15.3(3)jpc3
cisco / ios = 15.3(3)jpd
cisco / ios = 15.3(3)m
cisco / ios = 15.3(3)m1
cisco / ios = 15.3(3)m2
cisco / ios = 15.3(3)m3
cisco / ios = 15.3(3)m4
cisco / ios = 15.3(3)m5
cisco / ios = 15.3(3)m6
cisco / ios = 15.3(3)m7
cisco / ios = 15.3(3)m8
cisco / ios = 15.3(3)m8a
cisco / ios = 15.3(3)m9
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)s3
cisco / ios = 15.3(3)s4
cisco / ios = 15.3(3)s5
cisco / ios = 15.3(3)s6
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 = 15.4(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)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)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)s
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)s5a
cisco / ios = 15.4(3)s6
cisco / ios = 15.4(3)s6a
cisco / ios = 15.4(3)s6b
cisco / ios = 15.4(3)s7
cisco / ios = 15.4(3)s7a
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)sy
cisco / ios = 15.5(1)sy1
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)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(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)m3
cisco / ios = 15.5(3)m4
cisco / ios = 15.5(3)m4a
cisco / ios = 15.5(3)m5
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)s2a
cisco / ios = 15.5(3)s2b
cisco / ios = 15.5(3)s3
cisco / ios = 15.5(3)s3a
cisco / ios = 15.5(3)s4
cisco / ios = 15.5(3)s4a
cisco / ios = 15.5(3)s4b
cisco / ios = 15.5(3)s4d
cisco / ios = 15.5(3)s5
cisco / ios = 15.5(3)sn
cisco / ios = 15.6(1)s
cisco / ios = 15.6(1)s1
cisco / ios = 15.6(1)s1a
cisco / ios = 15.6(1)s2
cisco / ios = 15.6(1)s3
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)sn
cisco / ios = 15.6(2)sp
cisco / ios = 15.6(2)sp1
cisco / ios = 15.6(2)sp1b
cisco / ios = 15.6(2)sp1c
cisco / ios = 15.6(2)sp2
cisco / ios = 15.6(2)sp2a
cisco / ios = 15.6(2)t
cisco / ios = 15.6(2)t1
cisco / ios = 15.6(2)t2
cisco / ios = 15.6(3)m
cisco / ios = 15.6(3)m0a
cisco / ios = 15.6(3)m1
cisco / ios = 15.6(3)m1b
cisco / ios_xe <= 15.4\(3\)s
cisco / ios_xe = 3.3.0xo
cisco / ios_xe = 3.3.1xo
cisco / ios_xe = 3.3.2xo
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 = 3.6.0e
cisco / ios_xe = 3.6.0s
cisco / ios_xe = 3.6.1e
cisco / ios_xe = 3.6.1s
cisco / ios_xe = 3.6.2ae
cisco / ios_xe = 3.6.2e
cisco / ios_xe = 3.6.2s
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 = 3.7.0bs
cisco / ios_xe = 3.7.0e
cisco / ios_xe = 3.7.0s
cisco / ios_xe = 3.7.1as
cisco / ios_xe = 3.7.1e
cisco / ios_xe = 3.7.1s
cisco / ios_xe = 3.7.2e
cisco / ios_xe = 3.7.2s
cisco / ios_xe = 3.7.2ts
cisco / ios_xe = 3.7.3e
cisco / ios_xe = 3.7.3s
cisco / ios_xe = 3.7.4as
cisco / ios_xe = 3.7.4e
cisco / ios_xe = 3.7.4s
cisco / ios_xe = 3.7.5e
cisco / ios_xe = 3.7.5s
cisco / ios_xe = 3.7.6s
cisco / ios_xe = 3.7.7s
cisco / ios_xe = 3.8.0e
cisco / ios_xe = 3.8.0ex
cisco / ios_xe = 3.8.0s
cisco / ios_xe = 3.8.1e
cisco / ios_xe = 3.8.1s
cisco / ios_xe = 3.8.2e
cisco / ios_xe = 3.8.2s
cisco / ios_xe = 3.8.3e
cisco / ios_xe = 3.8.4e
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 = 3.9.2s
cisco / ios_xe = 3.10.0s
cisco / ios_xe = 3.10.1s
cisco / ios_xe = 3.10.1xbs
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 = 3.11.0s
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 = 3.13.6s
cisco / ios_xe = 3.13.7as
cisco / ios_xe = 3.13.7s
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 = 3.16.0cs
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 = 3.16.4ds
cisco / ios_xe = 3.16.4s
cisco / ios_xe = 3.16.5s
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 = 3.18.0as
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 = 3.18.1s
cisco / ios_xe = 3.18.1sp
cisco / ios_xe = 3.18.2s
cisco / ios_xe = 3.18.2sp
cisco / ios_xe = 3.18.3vs
cisco / ios_xe = 16.1.1
cisco / ios_xe = 16.1.2
cisco / ios_xe = 16.1.3
cisco / ios_xe = 16.1.3a
cisco / ios_xe = 16.1.4
cisco / ios_xe = 16.2.1
cisco / ios_xe = 16.2.2
cisco / ios_xe = 16.2.2a
cisco / ios_xe = 16.2.3
cisco / ios_xe = 16.3.1
cisco / ios_xe = 16.3.1a
cisco / ios_xe = 16.3.2
cisco / ios_xe = 16.4.1

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.