CVE-2021-34699: Cisco IOS and IOS XE Software TrustSec CLI Parser Denial of Service Vulnerability
Published Sep 23, 2021
·Updated
A vulnerability in the TrustSec CLI parser of Cisco IOS and Cisco IOS XE Software could allow an authenticated, remote attacker to cause an affected device to reload. This vulnerability is due to an improper interaction between the web UI and the CLI parser. An attacker could exploit this vulnerability by requesting a particular CLI command to be run through the web UI. A successful exploit could allow the attacker to cause the device to reload, resulting in a denial of service (DoS) condition.
Affected Software
836 affected components
cisco IOS=12.2\(6\)i1
cisco IOS=15.0\(1\)sy
cisco IOS=15.0\(1\)sy1
cisco IOS=15.0\(1\)sy2
cisco IOS=15.0\(1\)sy3
cisco IOS=15.0\(1\)sy4
cisco IOS=15.0\(1\)sy5
cisco IOS=15.0\(1\)sy6
cisco IOS=15.0\(1\)sy7
cisco IOS=15.0\(1\)sy7a
cisco IOS=15.0\(1\)sy8
cisco IOS=15.0\(1\)sy9
cisco IOS=15.0\(1\)sy10
cisco IOS=15.0\(2\)ej
cisco IOS=15.0\(2\)ej1
cisco IOS=15.0\(2\)ek
cisco IOS=15.0\(2\)ek1
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\(2\)ex6
cisco IOS=15.0\(2\)ex7
cisco IOS=15.0\(2\)ex8
cisco IOS=15.0\(2\)ex10
cisco IOS=15.0\(2\)ex11
cisco IOS=15.0\(2\)ex12
cisco IOS=15.0\(2\)ex13
cisco IOS=15.0\(2\)ey
cisco IOS=15.0\(2\)ey1
cisco IOS=15.0\(2\)ey2
cisco IOS=15.0\(2\)ey3
cisco IOS=15.0\(2\)ez
cisco IOS=15.0\(2\)se
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\(2\)se11
cisco IOS=15.0\(2\)se12
cisco IOS=15.0\(2\)se13
cisco IOS=15.0\(2\)se13a
cisco IOS=15.0\(2\)se13b
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\(2\)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=15.1\(2\)sy11
cisco IOS=15.1\(2\)sy12
cisco IOS=15.1\(2\)sy13
cisco IOS=15.1\(2\)sy14
cisco IOS=15.1\(2\)sy15
cisco IOS=15.1\(2\)sy16
cisco IOS=15.1\(2\)sy16a
cisco IOS=15.1\(3\)svr1
cisco IOS=15.1\(3\)svr2
cisco IOS=15.1\(3\)svr3
cisco IOS=15.1\(3\)svs
cisco IOS=15.1\(3\)svs1
cisco IOS=15.1\(3\)svt1
cisco IOS=15.1\(3\)svt2
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\(1\)sy8
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\(2\)e10a
cisco IOS=15.2\(2\)e10b
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\(2\)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\(3a\)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\(4\)e7
cisco IOS=15.2\(4\)e8
cisco IOS=15.2\(4\)e9
cisco IOS=15.2\(4\)e10
cisco IOS=15.2\(4\)e10a
cisco IOS=15.2\(4\)e10b
cisco IOS=15.2\(4\)e10c
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\(4\)ea8
cisco IOS=15.2\(4\)ea9
cisco IOS=15.2\(4\)ea9a
cisco IOS=15.2\(4\)ec1
cisco IOS=15.2\(4\)ec2
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\(5\)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\(6\)e0c
cisco IOS=15.2\(6\)e1
cisco IOS=15.2\(6\)e1a
cisco IOS=15.2\(6\)e1s
cisco IOS=15.2\(6\)e2
cisco IOS=15.2\(6\)e2a
cisco IOS=15.2\(6\)e2b
cisco IOS=15.2\(6\)e3
cisco IOS=15.2\(6\)eb
cisco IOS=15.2\(7\)e
cisco IOS=15.2\(7\)e0a
cisco IOS=15.2\(7\)e0b
cisco IOS=15.2\(7\)e0s
cisco IOS=15.2\(7\)e1
cisco IOS=15.2\(7\)e1a
cisco IOS=15.2\(7\)e2
cisco IOS=15.2\(7\)e2a
cisco IOS=15.2\(7\)e2b
cisco IOS=15.2\(7\)e3
cisco IOS=15.2\(7\)e3a
cisco IOS=15.2\(7\)e3k
cisco IOS=15.2\(7\)e4
cisco IOS=15.2\(7\)e99
cisco IOS=15.2\(7a\)e0b
cisco IOS=15.2\(7b\)e0b
cisco IOS=15.2\(8\)e
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\(3\)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\(3\)jd16
cisco IOS=15.3\(3\)jd17
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\(3\)jf10
cisco IOS=15.3\(3\)jf11
cisco IOS=15.3\(3\)jf12
cisco IOS=15.3\(3\)jf12i
cisco IOS=15.3\(3\)jf14
cisco IOS=15.3\(3\)jf14i
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\(3\)ji1
cisco IOS=15.3\(3\)ji3
cisco IOS=15.3\(3\)ji4
cisco IOS=15.3\(3\)ji5
cisco IOS=15.3\(3\)ji6
cisco IOS=15.3\(3\)jj
cisco IOS=15.3\(3\)jj1
cisco IOS=15.3\(3\)jk
cisco IOS=15.3\(3\)jk1
cisco IOS=15.3\(3\)jk1t
cisco IOS=15.3\(3\)jk2
cisco IOS=15.3\(3\)jk2a
cisco IOS=15.3\(3\)jk3
cisco IOS=15.3\(3\)jk4
cisco IOS=15.3\(3\)jk5
cisco IOS=15.3\(3\)jpi1
cisco IOS=15.3\(3\)jpi1t
cisco IOS=15.3\(3\)jpi4
cisco IOS=15.3\(3\)jpi5
cisco IOS=15.3\(3\)jpi5s
cisco IOS=15.3\(3\)jpi6a
cisco IOS=15.3\(3\)jpi7
cisco IOS=15.3\(3\)jpj2
cisco IOS=15.3\(3\)jpj2t
cisco IOS=15.3\(3\)jpj3
cisco IOS=15.3\(3\)jpj3a
cisco IOS=15.3\(3\)jpj4
cisco IOS=15.3\(3\)jpj5
cisco IOS=15.3\(3\)jpj6
cisco IOS=15.3\(3\)jpk
cisco IOS=15.3\(3\)jpk1
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\(1\)sy4
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\(3\)s10
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\(1\)sy1
cisco IOS=15.5\(1\)sy2
cisco IOS=15.5\(1\)sy3
cisco IOS=15.5\(1\)sy4
cisco IOS=15.5\(1\)sy5
cisco IOS=15.5\(1\)sy6
cisco IOS=15.5\(1\)sy7
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\(3\)m6
cisco IOS=15.5\(3\)m6a
cisco IOS=15.5\(3\)m7
cisco IOS=15.5\(3\)m8
cisco IOS=15.5\(3\)m9
cisco IOS=15.5\(3\)m10
cisco IOS=15.5\(3\)m11
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\(3\)s8
cisco IOS=15.5\(3\)s9
cisco IOS=15.5\(3\)s9a
cisco IOS=15.5\(3\)s10
cisco IOS=15.5\(3\)s10a
cisco IOS=15.5\(3\)s10b
cisco IOS=15.5\(3\)s10c
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\(2\)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\(2\)sp4
cisco IOS=15.6\(2\)sp5
cisco IOS=15.6\(2\)sp6
cisco IOS=15.6\(2\)sp7
cisco IOS=15.6\(2\)sp8
cisco IOS=15.6\(2\)sp8a
cisco IOS=15.6\(2\)sp9
cisco IOS=15.6\(2\)sp10
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\(3\)m5
cisco IOS=15.6\(3\)m6
cisco IOS=15.6\(3\)m6a
cisco IOS=15.6\(3\)m6b
cisco IOS=15.6\(3\)m7
cisco IOS=15.6\(3\)m8
cisco IOS=15.6\(3\)m9
cisco IOS=15.6\(3\)sn
cisco IOS=15.6\(4\)sn
cisco IOS=15.6\(5\)sn
cisco IOS=15.6\(7\)sn
cisco IOS=15.6\(7\)sn1
cisco IOS=15.6\(7\)sn2
cisco IOS=15.7\(3\)m
cisco IOS=15.7\(3\)m0a
cisco IOS=15.7\(3\)m1
cisco IOS=15.7\(3\)m2
cisco IOS=15.7\(3\)m3
cisco IOS=15.7\(3\)m4
cisco IOS=15.7\(3\)m4a
cisco IOS=15.7\(3\)m4b
cisco IOS=15.7\(3\)m5
cisco IOS=15.7\(3\)m6
cisco IOS=15.7\(3\)m7
cisco IOS=15.7\(3\)m8
cisco IOS=15.8\(3\)m
cisco IOS=15.8\(3\)m0a
cisco IOS=15.8\(3\)m0b
cisco IOS=15.8\(3\)m1
cisco IOS=15.8\(3\)m1a
cisco IOS=15.8\(3\)m2
cisco IOS=15.8\(3\)m2a
cisco IOS=15.8\(3\)m3
cisco IOS=15.8\(3\)m3a
cisco IOS=15.8\(3\)m3b
cisco IOS=15.8\(3\)m4
cisco IOS=15.8\(3\)m5
cisco IOS=15.8\(3\)m6
cisco IOS=15.9\(3\)m
cisco IOS=15.9\(3\)m0a
cisco IOS=15.9\(3\)m1
cisco IOS=15.9\(3\)m2
cisco IOS=15.9\(3\)m2a
cisco IOS=15.9\(3\)m3
cisco IOS=15.9\(3\)m3a
cisco IOS=15.9\(3\)m3b
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=3.6.8e
Cisco IOS XE=3.6.9ae
Cisco IOS XE=3.6.9e
Cisco IOS XE=3.6.10ae
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=3.8.0e
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=3.8.7e
Cisco IOS XE=3.8.8e
Cisco IOS XE=3.8.9e
Cisco IOS XE=3.8.10ce
Cisco IOS XE=3.8.10e
Cisco IOS XE=3.9.0e
Cisco IOS XE=3.9.1e
Cisco IOS XE=3.9.2be
Cisco IOS XE=3.9.2e
Cisco IOS XE=3.10.0ce
Cisco IOS XE=3.10.0e
Cisco IOS XE=3.10.1ae
Cisco IOS XE=3.10.1e
Cisco IOS XE=3.10.1se
Cisco IOS XE=3.10.2e
Cisco IOS XE=3.10.3e
Cisco IOS XE=3.11.0e
Cisco IOS XE=3.11.0s
Cisco IOS XE=3.11.1ae
Cisco IOS XE=3.11.1e
Cisco IOS XE=3.11.1s
Cisco IOS XE=3.11.2ae
Cisco IOS XE=3.11.2e
Cisco IOS XE=3.11.2s
Cisco IOS XE=3.11.3ae
Cisco IOS XE=3.11.3e
Cisco IOS XE=3.11.3s
Cisco IOS XE=3.11.4e
Cisco IOS XE=3.11.4s
Cisco IOS XE=3.11.99ze
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=3.13.10s
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=3.15.1xbs
Cisco IOS XE=3.15.2s
Cisco IOS XE=3.15.2xbs
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=3.16.7bs
Cisco IOS XE=3.16.7s
Cisco IOS XE=3.16.8s
Cisco IOS XE=3.16.9s
Cisco IOS XE=3.16.10as
Cisco IOS XE=3.16.10bs
Cisco IOS XE=3.16.10cs
Cisco IOS XE=3.16.10s
Cisco IOS XE=3.17.0s
Cisco IOS XE=3.17.1as
Cisco IOS XE=3.17.1s
Cisco IOS XE=3.17.2s
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=3.18.6sp
Cisco IOS XE=3.18.7sp
Cisco IOS XE=3.18.8asp
Cisco IOS XE=3.18.8sp
Cisco IOS XE=3.18.9sp
Cisco IOS XE=3.18.10sp
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=16.3.6
Cisco IOS XE=16.3.7
Cisco IOS XE=16.3.8
Cisco IOS XE=16.3.9
Cisco IOS XE=16.3.10
Cisco IOS XE=16.3.11
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=16.5.3
Cisco IOS XE=16.6.1
Cisco IOS XE=16.6.2
Cisco IOS XE=16.6.3
Cisco IOS XE=16.6.4
Cisco IOS XE=16.6.4a
Cisco IOS XE=16.6.4s
Cisco IOS XE=16.6.5
Cisco IOS XE=16.6.5a
Cisco IOS XE=16.6.5b
Cisco IOS XE=16.6.6
Cisco IOS XE=16.6.7
Cisco IOS XE=16.6.7a
Cisco IOS XE=16.6.8
Cisco IOS XE=16.6.9
Cisco IOS XE=16.7.1
Cisco IOS XE=16.7.1a
Cisco IOS XE=16.7.1b
Cisco IOS XE=16.7.2
Cisco IOS XE=16.7.3
Cisco IOS XE=16.7.4
Cisco IOS XE=16.8.1
Cisco IOS XE=16.8.1a
Cisco IOS XE=16.8.1b
Cisco IOS XE=16.8.1c
Cisco IOS XE=16.8.1d
Cisco IOS XE=16.8.1e
Cisco IOS XE=16.8.1s
Cisco IOS XE=16.8.2
Cisco IOS XE=16.8.3
Cisco IOS XE=16.9.1
Cisco IOS XE=16.9.1a
Cisco IOS XE=16.9.1b
Cisco IOS XE=16.9.1c
Cisco IOS XE=16.9.1d
Cisco IOS XE=16.9.1s
Cisco IOS XE=16.9.2
Cisco IOS XE=16.9.2a
Cisco IOS XE=16.9.2s
Cisco IOS XE=16.9.3
Cisco IOS XE=16.9.3a
Cisco IOS XE=16.9.3h
Cisco IOS XE=16.9.3s
Cisco IOS XE=16.9.4
Cisco IOS XE=16.9.4c
Cisco IOS XE=16.9.5
Cisco IOS XE=16.9.5f
Cisco IOS XE=16.9.6
Cisco IOS XE=16.9.7
Cisco IOS XE=16.10.1
Cisco IOS XE=16.10.1a
Cisco IOS XE=16.10.1b
Cisco IOS XE=16.10.1c
Cisco IOS XE=16.10.1d
Cisco IOS XE=16.10.1e
Cisco IOS XE=16.10.1f
Cisco IOS XE=16.10.1g
Cisco IOS XE=16.10.1s
Cisco IOS XE=16.10.2
Cisco IOS XE=16.10.3
Cisco IOS XE=16.11.1
Cisco IOS XE=16.11.1a
Cisco IOS XE=16.11.1b
Cisco IOS XE=16.11.1c
Cisco IOS XE=16.11.1s
Cisco IOS XE=16.11.2
Cisco IOS XE=16.12.1
Cisco IOS XE=16.12.1a
Cisco IOS XE=16.12.1c
Cisco IOS XE=16.12.1s
Cisco IOS XE=16.12.1t
Cisco IOS XE=16.12.1w
Cisco IOS XE=16.12.1x
Cisco IOS XE=16.12.1y
Cisco IOS XE=16.12.1z
Cisco IOS XE=16.12.1z1
Cisco IOS XE=16.12.1za
Cisco IOS XE=16.12.2
Cisco IOS XE=16.12.2a
Cisco IOS XE=16.12.2s
Cisco IOS XE=16.12.2t
Cisco IOS XE=16.12.3
Cisco IOS XE=16.12.3a
Cisco IOS XE=16.12.3s
Cisco IOS XE=16.12.4
Cisco IOS XE=16.12.4a
Cisco IOS XE=16.12.5
Cisco IOS XE=16.12.5a
Cisco IOS XE=16.12.5b
Cisco IOS XE=17.1.1
Cisco IOS XE=17.1.1a
Cisco IOS XE=17.1.1s
Cisco IOS XE=17.1.1t
Cisco IOS XE=17.1.2
Cisco IOS XE=17.1.3
Cisco IOS XE=17.2.1
Cisco IOS XE=17.2.1a
Cisco IOS XE=17.2.1r
Cisco IOS XE=17.2.1v
Cisco IOS XE=17.2.2
Cisco IOS XE=17.2.3
Cisco IOS XE=17.3.1
Cisco IOS XE=17.3.1a
Cisco IOS XE=17.3.1w
Cisco IOS XE=17.3.1x
Cisco IOS XE=17.3.1z
Cisco IOS XE=17.3.2
Cisco IOS XE=17.3.2a
Cisco IOS XE=17.3.3
Cisco IOS XE=17.3.3a
Cisco IOS XE=17.4.1
Cisco IOS XE=17.4.1a
Cisco IOS XE=17.4.1b
Cisco IOS XE=17.4.1c
Cisco IOS XE=17.5.1
Cisco IOS XE=17.5.1a
cisco IOS
Cisco IOS XE
Event History
Sep 23, 2021
CVE Published
via MITRE·02:25 AM
Data Sourced
via MITRE·02:25 AM
DescriptionSeverityWeakness
Frequently Asked Questions
1
What is the severity of CVE-2021-34699?
CVE-2021-34699 has a CVSS score of 7.5, indicating a high severity remote denial of service vulnerability.
2
How do I fix CVE-2021-34699?
To fix CVE-2021-34699, update the affected Cisco IOS or IOS XE software to the latest available version.
3
Who is affected by CVE-2021-34699?
CVE-2021-34699 affects multiple versions of Cisco IOS and Cisco IOS XE software across a range of Cisco devices.
4
What kind of attack exploits CVE-2021-34699?
An authenticated remote attacker can exploit CVE-2021-34699 to cause a denial of service by manipulating the TrustSec CLI parser.
5
Is there a workaround for CVE-2021-34699?
Currently, no specific workaround is provided for CVE-2021-34699; applying the appropriate software updates is recommended.