CVE-2023-20080: Cisco IOS and IOS XE Software IPv6 DHCP (DHCPv6) Relay and Server Denial of Service Vulnerability

Published Mar 23, 2023
·
Updated

A vulnerability in the IPv6 DHCP version 6 (DHCPv6) relay and server features of Cisco IOS and IOS XE Software could allow an unauthenticated, remote attacker to trigger a denial of service (DoS) condition. This vulnerability is due to insufficient validation of data boundaries. An attacker could exploit this vulnerability by sending crafted DHCPv6 messages to an affected device. A successful exploit could allow the attacker to cause the device to reload unexpectedly.

Affected Software

852 affected components
cisco IOS=12.2\(6\)i1
cisco IOS=15.1\(2\)sg
cisco IOS=15.1\(2\)sg1
cisco IOS=15.1\(2\)sg2
cisco IOS=15.1\(2\)sg3
cisco IOS=15.1\(2\)sg4
cisco IOS=15.1\(2\)sg5
cisco IOS=15.1\(2\)sg6
cisco IOS=15.1\(2\)sg7
cisco IOS=15.1\(2\)sg8
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\(3\)svr10
cisco IOS=15.1\(3\)svs
cisco IOS=15.1\(3\)svt1
cisco IOS=15.1\(3\)svt3
cisco IOS=15.1\(3\)svt4
cisco IOS=15.1\(3\)svu1
cisco IOS=15.1\(3\)svu2
cisco IOS=15.1\(3\)svu10
cisco IOS=15.1\(3\)svu11
cisco IOS=15.1\(3\)svu20
cisco IOS=15.1\(3\)svu21
cisco IOS=15.1\(3\)svv1
cisco IOS=15.1\(3\)svv2
cisco IOS=15.1\(3\)svv3
cisco IOS=15.1\(3\)svw
cisco IOS=15.1\(3\)svw1
cisco IOS=15.1\(3\)svx
cisco IOS=15.1\(3\)svx1
cisco IOS=15.1\(4\)m7
cisco IOS=15.1\(4\)m8
cisco IOS=15.1\(4\)m9
cisco IOS=15.1\(4\)m10
cisco IOS=15.1\(4\)m12a
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\(1\)s
cisco IOS=15.2\(1\)s1
cisco IOS=15.2\(1\)s2
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\(2\)s
cisco IOS=15.2\(2\)s0a
cisco IOS=15.2\(2\)s0c
cisco IOS=15.2\(2\)s0d
cisco IOS=15.2\(2\)s1
cisco IOS=15.2\(2\)s2
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\(3a\)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\(4\)gc1
cisco IOS=15.2\(4\)gc2
cisco IOS=15.2\(4\)gc3
cisco IOS=15.2\(4\)m5
cisco IOS=15.2\(4\)m6
cisco IOS=15.2\(4\)m6a
cisco IOS=15.2\(4\)m6b
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\(4\)s0c
cisco IOS=15.2\(4\)s1
cisco IOS=15.2\(4\)s1c
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\(4\)s8
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\(7\)e5
cisco IOS=15.2\(7\)e6
cisco IOS=15.2\(7a\)e0b
cisco IOS=15.2\(7b\)e0b
cisco IOS=15.2\(8\)e
cisco IOS=15.2\(8\)e1
cisco IOS=15.2\(8\)e2
cisco IOS=15.2\(234k\)e
cisco IOS=15.3\(0\)sy
cisco IOS=15.3\(1\)s
cisco IOS=15.3\(1\)s1
cisco IOS=15.3\(1\)s1e
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\(2\)s
cisco IOS=15.3\(2\)s1
cisco IOS=15.3\(2\)s2
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\(3\)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\(1\)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\(1\)sy8
cisco IOS=15.5\(1\)sy9
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\(3\)m11a
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\(3\)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\(2\)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=15.7\(3\)m9
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=15.8\(3\)m7
cisco IOS=15.8\(3\)m8
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=15.9\(3\)m4
cisco IOS=15.9\(3\)m4a
cisco IOS=15.9\(3\)m5
Cisco IOS XE=3.3.0xo
Cisco IOS XE=3.3.1xo
Cisco IOS XE=3.3.2xo
Cisco IOS XE=3.4.0sg
Cisco IOS XE=3.4.1sg
Cisco IOS XE=3.4.2sg
Cisco IOS XE=3.4.3sg
Cisco IOS XE=3.4.4sg
Cisco IOS XE=3.4.5sg
Cisco IOS XE=3.4.6sg
Cisco IOS XE=3.4.7sg
Cisco IOS XE=3.4.8sg
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=3.6.10e
Cisco IOS XE=3.7.0bs
Cisco IOS XE=3.7.0e
Cisco IOS XE=3.7.0s
Cisco IOS XE=3.7.0xas
Cisco IOS XE=3.7.0xbs
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=3.7.8s
Cisco IOS XE=3.8.0e
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=3.8.5ae
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=3.9.0as
Cisco IOS XE=3.9.0e
Cisco IOS XE=3.9.0s
Cisco IOS XE=3.9.0xas
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=3.10.1ae
Cisco IOS XE=3.10.1e
Cisco IOS XE=3.10.1s
Cisco IOS XE=3.10.1se
Cisco IOS XE=3.10.1xbs
Cisco IOS XE=3.10.1xcs
Cisco IOS XE=3.10.2as
Cisco IOS XE=3.10.2e
Cisco IOS XE=3.10.2s
Cisco IOS XE=3.10.2ts
Cisco IOS XE=3.10.3e
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=3.11.0e
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=3.11.5e
Cisco IOS XE=3.11.6e
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=3.15.2s
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=3.16.7bs
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=3.16.10s
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=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=16.6.10
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=16.9.8
Cisco IOS XE=16.9.8a
Cisco IOS XE=16.9.8b
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=16.12.1z2
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=16.12.6
Cisco IOS XE=16.12.6a
Cisco IOS XE=16.12.7
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=17.4.2
Cisco IOS XE=17.4.2a

Event History

Mar 23, 2023
CVE Published
via MITRE·12:00 AM
Data Sourced
via MITRE·12:00 AM
DescriptionSeverityWeakness
Free Weekly Intel

Don't miss critical vulnerabilities

Join thousands of security professionals who receive our weekly digest of trending CVEs, zero-days, and exploited vulnerabilities.

No spam. Unsubscribe anytime.

Frequently Asked Questions

1

What is the severity of CVE-2023-20080?

CVE-2023-20080 has a medium severity level, potentially leading to a denial of service (DoS) condition.

2

How does CVE-2023-20080 impact systems?

CVE-2023-20080 can allow unauthenticated attackers to exploit insufficient validation in the DHCPv6 relay and server features, causing DoS.

3

How do I fix CVE-2023-20080?

To fix CVE-2023-20080, apply the latest patches provided by Cisco for the affected IOS and IOS XE software versions.

4

Which Cisco products are affected by CVE-2023-20080?

CVE-2023-20080 affects multiple versions of Cisco IOS and IOS XE software, including specific releases such as 12.2(6)i1 and 15.1(2)sg.

5

What are the potential risks of CVE-2023-20080?

The risks associated with CVE-2023-20080 include potential disruptions to network services and loss of availability due to an attacker causing a DoS condition.

Company

Resources

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co
By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.
© 2026 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203