Vulnerability Database

289,599

Total vulnerabilities in the database

CVE-2019-1740

A vulnerability in the Network-Based Application Recognition (NBAR) feature of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause an affected device to reload. This vulnerability are due to a parsing issue on DNS packets. An attacker could exploit this vulnerability by sending crafted DNS packets through routers that are running an affected version and have NBAR enabled. A successful exploit could allow the attacker to cause the affected device to reload, resulting in a denial of service (DoS) condition.

  • Published: Mar 28, 2019
  • Updated: Apr 13, 2023
  • CVE: CVE-2019-1740
  • Severity: High
  • Exploit:

CVSS v3:

  • Severity: High
  • Score: 8.6
  • AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

CVSS v2:

  • Severity: High
  • Score: 7.8
  • AV:N/AC:L/Au:N/C:N/I:N/A:C

CWEs:

Software From Fixed in
cisco / ios_xe 16.2.1 16.2.1.x
cisco / ios_xe 3.18.2s 3.18.2s.x
cisco / ios_xe 3.17.3s 3.17.3s.x
cisco / ios_xe 3.16.0s 3.16.0s.x
cisco / ios_xe 3.16.4s 3.16.4s.x
cisco / ios_xe 3.17.1as 3.17.1as.x
cisco / ios_xe 3.18.2asp 3.18.2asp.x
cisco / ios_xe 3.18.3s 3.18.3s.x
cisco / ios_xe 3.18.0as 3.18.0as.x
cisco / ios_xe 3.16.2s 3.16.2s.x
cisco / ios_xe 3.16.0cs 3.16.0cs.x
cisco / ios_xe 3.18.1sp 3.18.1sp.x
cisco / ios_xe 3.17.4s 3.17.4s.x
cisco / ios_xe 3.17.2s 3.17.2s.x
cisco / ios_xe 3.16.5s 3.16.5s.x
cisco / ios_xe 3.16.1s 3.16.1s.x
cisco / ios_xe 3.2.0ja 3.2.0ja.x
cisco / ios_xe 3.18.1bsp 3.18.1bsp.x
cisco / ios_xe 3.18.1csp 3.18.1csp.x
cisco / ios_xe 3.18.0s 3.18.0s.x
cisco / ios_xe 3.17.0s 3.17.0s.x
cisco / ios_xe 3.16.4ds 3.16.4ds.x
cisco / ios_xe 3.16.3s 3.16.3s.x
cisco / ios_xe 3.17.1s 3.17.1s.x
cisco / ios_xe 3.18.2sp 3.18.2sp.x
cisco / ios_xe 16.4.1 16.4.1.x
cisco / ios_xe 3.16.2bs 3.16.2bs.x
cisco / ios_xe 3.16.1as 3.16.1as.x
cisco / ios_xe 3.18.1s 3.18.1s.x
cisco / ios_xe 16.2.2 16.2.2.x
cisco / ios_xe 3.18.0sp 3.18.0sp.x
cisco / ios_xe 3.16.3as 3.16.3as.x
cisco / ios_xe 3.16.4as 3.16.4as.x
cisco / ios_xe 3.16.4bs 3.16.4bs.x
cisco / ios_xe 16.3.1 16.3.1.x
cisco / ios_xe 3.16.2as 3.16.2as.x
cisco / ios_xe 3.18.1asp 3.18.1asp.x
cisco / ios_xe 16.3.1a 16.3.1a.x
cisco / ios_xe 16.3.2 16.3.2.x
cisco / ios_xe 16.3.3 16.3.3.x
cisco / ios_xe 16.5.1 16.5.1.x
cisco / ios_xe 16.5.1a 16.5.1a.x
cisco / ios_xe 16.3.4 16.3.4.x
cisco / ios_xe 16.5.1b 16.5.1b.x
cisco / ios_xe 16.4.2 16.4.2.x
cisco / ios_xe 3.16.4gs 3.16.4gs.x
cisco / ios_xe 3.16.4cs 3.16.4cs.x
cisco / ios_xe 3.16.4es 3.16.4es.x
cisco / ios_xe 3.16.5as 3.16.5as.x
cisco / ios_xe 3.16.0bs 3.16.0bs.x
cisco / ios_xe 16.4.3 16.4.3.x
cisco / ios_xe 3.18.1isp 3.18.1isp.x
cisco / ios_xe 3.18.1gsp 3.18.1gsp.x
cisco / ios_xe 3.18.4s 3.18.4s.x
cisco / ios_xe 3.18.1hsp 3.18.1hsp.x
cisco / ios_xe 3.16.0as 3.16.0as.x
cisco / ios_xe 16.9.3s 16.9.3s.x
cisco / ios_xe 16.9.4c 16.9.4c.x
cisco / ios 15.6(1)t2 15.6(1)t2.x
cisco / ios 15.3(3)jpc 15.3(3)jpc.x
cisco / ios 15.5(3)s1a 15.5(3)s1a.x
cisco / ios 15.5(3)m4a 15.5(3)m4a.x
cisco / ios 15.6(2)t1 15.6(2)t1.x
cisco / ios 15.6(3)m1 15.6(3)m1.x
cisco / ios 15.5(3)sn 15.5(3)sn.x
cisco / ios 15.3(3)jnp 15.3(3)jnp.x
cisco / ios 15.6(1)s2 15.6(1)s2.x
cisco / ios 15.5(3)s5 15.5(3)s5.x
cisco / ios 15.5(3)m3 15.5(3)m3.x
cisco / ios 15.5(3)m2 15.5(3)m2.x
cisco / ios 15.3(3)jd2 15.3(3)jd2.x
cisco / ios 15.6(2)s 15.6(2)s.x
cisco / ios 15.6(2)s2 15.6(2)s2.x
cisco / ios 15.5(3)s4 15.5(3)s4.x
cisco / ios 15.3(3)jpb 15.3(3)jpb.x
cisco / ios 15.5(3)m 15.5(3)m.x
cisco / ios 15.3(3)jpc1 15.3(3)jpc1.x
cisco / ios 15.6(1)s4 15.6(1)s4.x
cisco / ios 15.6(2)t2 15.6(2)t2.x
cisco / ios 15.6(2)sn 15.6(2)sn.x
cisco / ios 15.3(3)jpb1 15.3(3)jpb1.x
cisco / ios 15.5(3)m1 15.5(3)m1.x
cisco / ios 15.5(3)s2 15.5(3)s2.x
cisco / ios 15.6(2)s4 15.6(2)s4.x
cisco / ios 15.5(3)s1 15.5(3)s1.x
cisco / ios 15.3(3)jnp1 15.3(3)jnp1.x
cisco / ios 15.5(3)m0a 15.5(3)m0a.x
cisco / ios 15.5(3)s 15.5(3)s.x
cisco / ios 15.6(1)t1 15.6(1)t1.x
cisco / ios 15.6(3)m1b 15.6(3)m1b.x
cisco / ios 15.6(3)m 15.6(3)m.x
cisco / ios 15.6(1)s3 15.6(1)s3.x
cisco / ios 15.6(1)s1 15.6(1)s1.x
cisco / ios 15.6(2)t 15.6(2)t.x
cisco / ios 15.6(3)m0a 15.6(3)m0a.x
cisco / ios 15.6(2)s3 15.6(2)s3.x
cisco / ios 15.3(3)jd 15.3(3)jd.x
cisco / ios 15.6(1)t0a 15.6(1)t0a.x
cisco / ios 15.3(3)jnp3 15.3(3)jnp3.x
cisco / ios 15.6(1)s 15.6(1)s.x
cisco / ios 15.6(2)s1 15.6(2)s1.x
cisco / ios 15.5(3)m4 15.5(3)m4.x
cisco / ios 15.5(3)m5 15.5(3)m5.x
cisco / ios 15.3(3)jpc2 15.3(3)jpc2.x
cisco / ios 15.5(3)s0a 15.5(3)s0a.x
cisco / ios 15.5(3)s3 15.5(3)s3.x
cisco / ios 15.6(1)t 15.6(1)t.x
cisco / ios 15.3(3)jd3 15.3(3)jd3.x
cisco / ios 15.3(3)jpc3 15.3(3)jpc3.x
cisco / ios 15.3(3)jd4 15.3(3)jd4.x
cisco / ios 15.3(3)jpd 15.3(3)jpd.x
cisco / ios 15.3(3)je 15.3(3)je.x
cisco / ios 15.3(3)jd7 15.3(3)jd7.x
cisco / ios 15.3(3)jf1 15.3(3)jf1.x
cisco / ios 15.5(3)m4b 15.5(3)m4b.x
cisco / ios 15.5(3)m4c 15.5(3)m4c.x
cisco / ios 15.6(3)m1a 15.6(3)m1a.x
cisco / ios 15.6(1)sn2 15.6(1)sn2.x
cisco / ios 15.6(1)sn1 15.6(1)sn1.x
cisco / ios 15.6(1)sn3 15.6(1)sn3.x
cisco / ios 15.6(6)sn 15.6(6)sn.x
cisco / ios 15.5(3)sn0a 15.5(3)sn0a.x
cisco / ios 15.6(1)sn 15.6(1)sn.x
cisco / ios 15.6(5)sn 15.6(5)sn.x
cisco / ios 15.6(7)sn 15.6(7)sn.x
cisco / ios 15.6(4)sn 15.6(4)sn.x
cisco / ios 15.6(3)sn 15.6(3)sn.x
cisco / ios 15.6(2)t0a 15.6(2)t0a.x
cisco / ios 15.5(3)m2a 15.5(3)m2a.x
cisco / ios 15.3(3)jd9 15.3(3)jd9.x
cisco / ios 15.3(3)jd11 15.3(3)jd11.x
cisco / ios 15.3(3)jh 15.3(3)jh.x
cisco / ios 15.3(3)jd12 15.3(3)jd12.x
cisco / ios 15.3(3)jd13 15.3(3)jd13.x
cisco / ios 15.3(3)jd6 15.3(3)jd6.x
cisco / ios 15.3(3)jd8 15.3(3)jd8.x
cisco / ios 15.3(3)jd5 15.3(3)jd5.x
cisco / ios 15.3(3)jg1 15.3(3)jg1.x
cisco / ios 15.3(3)jd14 15.3(3)jd14.x
cisco / ios 15.3(3)jf5 15.3(3)jf5.x
cisco / ios 15.3(3)jg 15.3(3)jg.x
cisco / ios 15.3(3)jf 15.3(3)jf.x
cisco / ios 15.3(3)jf4 15.3(3)jf4.x
cisco / ios 15.3(3)jf2 15.3(3)jf2.x
cisco / ios 15.3(3)jpc5 15.3(3)jpc5.x
cisco / ios 15.6(7)sn1 15.6(7)sn1.x
cisco / ios 15.6(7)sn2 15.6(7)sn2.x
cisco / ios 15.3(3)jk6 15.3(3)jk6.x
cisco / ios 15.6(7)sn3 15.6(7)sn3.x