CVE-2012-4623

Published: Sep 27, 2012Modified: Apr 29, 2026

7.8

Vector

AV:N/AC:L/Au:N/C:N/I:N/A:C

Exploitability: 10.0 / Impact: 6.9

Source: NVD

Description

The DHCPv6 server in Cisco IOS 12.2 through 12.4 and 15.0 through 15.2 and IOS XE 2.1.x through 2.6.x, 3.1.xS before 3.1.4S, 3.1.xSG and 3.2.xSG before 3.2.5SG, 3.2.xS, 3.2.xXO, 3.3.xS, and 3.3.xSG before 3.3.1SG allows remote attackers to cause a denial of service (device reload) via a malformed DHCPv6 packet, aka Bug ID CSCto57723.

Affected (338)

Products: Cisco: Ios Xe, Ios

Cisco

2 products

Ios Xe

Ios

Configuration A

25 vulnerable

Vulnerable Software	Affected Versions
Cisco Ios Xe	Version 2.1.0
Cisco Ios Xe	Version 2.1.1
Cisco Ios Xe	Version 2.1.2
Cisco Ios Xe	Version 2.1
Cisco Ios Xe	Version 2.2.1
Cisco Ios Xe	Version 2.2.2
Cisco Ios Xe	Version 2.2.3
Cisco Ios Xe	Version 2.2
Cisco Ios Xe	Version 2.3.0
Cisco Ios Xe	Version 2.3.1
Cisco Ios Xe	Version 2.3.1t
Cisco Ios Xe	Version 2.3.2
Cisco Ios Xe	Version 2.3
Cisco Ios Xe	Version 2.4.0
Cisco Ios Xe	Version 2.4.1
Cisco Ios Xe	Version 2.4.2
Cisco Ios Xe	Version 2.4.3
Cisco Ios Xe	Version 2.4.4
Cisco Ios Xe	Version 2.4
Cisco Ios Xe	Version 2.5.0
Cisco Ios Xe	Version 2.5.1
Cisco Ios Xe	Version 2.5.2
Cisco Ios Xe	Version 2.6.0
Cisco Ios Xe	Version 2.6.1
Cisco Ios Xe	Version 2.6.2

Configuration B

293 vulnerable

Vulnerable Software	Affected Versions
Cisco Ios	Version 12.3
Cisco Ios	Version 12.3(10)
Cisco Ios	Version 12.3(10c)
Cisco Ios	Version 12.3(10d)
Cisco Ios	Version 12.3(10e)
Cisco Ios	Version 12.3(11)
Cisco Ios	Version 12.3(11)t4
Cisco Ios	Version 12.3(11)t5
Cisco Ios	Version 12.3(11)t6
Cisco Ios	Version 12.3(11)t8
Cisco Ios	Version 12.3(11)t9
Cisco Ios	Version 12.3(11)t
Cisco Ios	Version 12.3(11)xl3
Cisco Ios	Version 12.3(11)xl
Cisco Ios	Version 12.3(11)yf2
Cisco Ios	Version 12.3(11)yf3
Cisco Ios	Version 12.3(11)yf4
Cisco Ios	Version 12.3(11)yf
Cisco Ios	Version 12.3(11)yj
Cisco Ios	Version 12.3(11)yk1
Cisco Ios	Version 12.3(11)yk2
Cisco Ios	Version 12.3(11)yk
Cisco Ios	Version 12.3(11)yl
Cisco Ios	Version 12.3(11)yn
Cisco Ios	Version 12.3(11)yr
Cisco Ios	Version 12.3(11)ys1
Cisco Ios	Version 12.3(11)ys
Cisco Ios	Version 12.3(11)yw
Cisco Ios	Version 12.3(12)
Cisco Ios	Version 12.3(12b)
Cisco Ios	Version 12.3(12e)
Cisco Ios	Version 12.3(13)
Cisco Ios	Version 12.3(13a)
Cisco Ios	Version 12.3(13a)bc1
Cisco Ios	Version 12.3(13a)bc
Cisco Ios	Version 12.3(13b)
Cisco Ios	Version 12.3(14)t2
Cisco Ios	Version 12.3(14)t4
Cisco Ios	Version 12.3(14)t5
Cisco Ios	Version 12.3(14)t
Cisco Ios	Version 12.3(14)ym4
Cisco Ios	Version 12.3(14)yq1
Cisco Ios	Version 12.3(14)yq3
Cisco Ios	Version 12.3(14)yq4
Cisco Ios	Version 12.3(14)yq
Cisco Ios	Version 12.3(14)yt1
Cisco Ios	Version 12.3(14)yt
Cisco Ios	Version 12.3(14)yu1
Cisco Ios	Version 12.3(14)yu
Cisco Ios	Version 12.3(15)
Cisco Ios	Version 12.3(15b)
Cisco Ios	Version 12.3(16)
Cisco Ios	Version 12.3(1a)
Cisco Ios	Version 12.3(2)ja5
Cisco Ios	Version 12.3(2)ja
Cisco Ios	Version 12.3(2)jk1
Cisco Ios	Version 12.3(2)jk
Cisco Ios	Version 12.3(2)t3
Cisco Ios	Version 12.3(2)t8
Cisco Ios	Version 12.3(2)xa4
Cisco Ios	Version 12.3(2)xa5
Cisco Ios	Version 12.3(2)xc1
Cisco Ios	Version 12.3(2)xc2
Cisco Ios	Version 12.3(2)xc3
Cisco Ios	Version 12.3(2)xc4
Cisco Ios	Version 12.3(2)xe3
Cisco Ios	Version 12.3(2)xe4
Cisco Ios	Version 12.3(3e)
Cisco Ios	Version 12.3(3h)
Cisco Ios	Version 12.3(3i)
Cisco Ios	Version 12.3(4)eo1
Cisco Ios	Version 12.3(4)ja1
Cisco Ios	Version 12.3(4)ja
Cisco Ios	Version 12.3(4)t1
Cisco Ios	Version 12.3(4)t2
Cisco Ios	Version 12.3(4)t3
Cisco Ios	Version 12.3(4)t4
Cisco Ios	Version 12.3(4)t8
Cisco Ios	Version 12.3(4)t
Cisco Ios	Version 12.3(4)tpc11a
Cisco Ios	Version 12.3(4)xd1
Cisco Ios	Version 12.3(4)xd2
Cisco Ios	Version 12.3(4)xd
Cisco Ios	Version 12.3(4)xe4
Cisco Ios	Version 12.3(4)xg1
Cisco Ios	Version 12.3(4)xg2
Cisco Ios	Version 12.3(4)xg4
Cisco Ios	Version 12.3(4)xg5
Cisco Ios	Version 12.3(4)xh
Cisco Ios	Version 12.3(4)xk1
Cisco Ios	Version 12.3(4)xk3
Cisco Ios	Version 12.3(4)xk4
Cisco Ios	Version 12.3(4)xk
Cisco Ios	Version 12.3(4)xq1
Cisco Ios	Version 12.3(4)xq
Cisco Ios	Version 12.3(5)
Cisco Ios	Version 12.3(5)b1
Cisco Ios	Version 12.3(5a)
Cisco Ios	Version 12.3(5a)b2
Cisco Ios	Version 12.3(5a)b5
Cisco Ios	Version 12.3(5a)b
Cisco Ios	Version 12.3(5b)
Cisco Ios	Version 12.3(5c)
Cisco Ios	Version 12.3(5e)
Cisco Ios	Version 12.3(5f)
Cisco Ios	Version 12.3(6)
Cisco Ios	Version 12.3(6a)
Cisco Ios	Version 12.3(6d)
Cisco Ios	Version 12.3(6e)
Cisco Ios	Version 12.3(6f)
Cisco Ios	Version 12.3(7.7)
Cisco Ios	Version 12.3(7)ja1
Cisco Ios	Version 12.3(7)ja
Cisco Ios	Version 12.3(7)jx
Cisco Ios	Version 12.3(7)t10
Cisco Ios	Version 12.3(7)t12
Cisco Ios	Version 12.3(7)t4
Cisco Ios	Version 12.3(7)t8
Cisco Ios	Version 12.3(7)t9
Cisco Ios	Version 12.3(7)t
Cisco Ios	Version 12.3(7)xi3
Cisco Ios	Version 12.3(7)xi4
Cisco Ios	Version 12.3(7)xi7
Cisco Ios	Version 12.3(7)xr3
Cisco Ios	Version 12.3(7)xr4
Cisco Ios	Version 12.3(7)xr6
Cisco Ios	Version 12.3(8)ja1
Cisco Ios	Version 12.3(8)ja
Cisco Ios	Version 12.3(8)t11
Cisco Ios	Version 12.3(8)t4
Cisco Ios	Version 12.3(8)t7
Cisco Ios	Version 12.3(8)t8
Cisco Ios	Version 12.3(8)t9
Cisco Ios	Version 12.3(8)xu2
Cisco Ios	Version 12.3(8)xy4
Cisco Ios	Version 12.3(8)xy5
Cisco Ios	Version 12.3(8)xy6
Cisco Ios	Version 12.3(8)ya1
Cisco Ios	Version 12.3(8)yd
Cisco Ios	Version 12.3(8)yf
Cisco Ios	Version 12.3(8)yg1
Cisco Ios	Version 12.3(8)yg2
Cisco Ios	Version 12.3(8)yg3
Cisco Ios	Version 12.3(8)yg
Cisco Ios	Version 12.3(8)yh
Cisco Ios	Version 12.3(8)yi1
Cisco Ios	Version 12.3(8)yi3
Cisco Ios	Version 12.3(8)yi
Cisco Ios	Version 12.3(9)
Cisco Ios	Version 12.3(9a)bc2
Cisco Ios	Version 12.3(9a)bc6
Cisco Ios	Version 12.3(9a)bc7
Cisco Ios	Version 12.3(9a)bc
Cisco Ios	Version 12.3(9d)
Cisco Ios	Version 12.3(9e)
Cisco Ios	Version 12.3b
Cisco Ios	Version 12.3bc
Cisco Ios	Version 12.3bw
Cisco Ios	Version 12.3j
Cisco Ios	Version 12.3ja
Cisco Ios	Version 12.3jea
Cisco Ios	Version 12.3jeb
Cisco Ios	Version 12.3jec
Cisco Ios	Version 12.3jed
Cisco Ios	Version 12.3jk
Cisco Ios	Version 12.3jl
Cisco Ios	Version 12.3jx
Cisco Ios	Version 12.3t
Cisco Ios	Version 12.3tpc
Cisco Ios	Version 12.3va
Cisco Ios	Version 12.3xa
Cisco Ios	Version 12.3xb
Cisco Ios	Version 12.3xc
Cisco Ios	Version 12.3xd
Cisco Ios	Version 12.3xe
Cisco Ios	Version 12.3xf
Cisco Ios	Version 12.3xg
Cisco Ios	Version 12.3xh
Cisco Ios	Version 12.3xi
Cisco Ios	Version 12.3xj
Cisco Ios	Version 12.3xk
Cisco Ios	Version 12.3xl
Cisco Ios	Version 12.3xm
Cisco Ios	Version 12.3xn
Cisco Ios	Version 12.3xq
Cisco Ios	Version 12.3xr
Cisco Ios	Version 12.3xs
Cisco Ios	Version 12.3xt
Cisco Ios	Version 12.3xu
Cisco Ios	Version 12.3xv
Cisco Ios	Version 12.3xw
Cisco Ios	Version 12.3xx
Cisco Ios	Version 12.3xy
Cisco Ios	Version 12.3xz
Cisco Ios	Version 12.3ya
Cisco Ios	Version 12.3yb
Cisco Ios	Version 12.3yc
Cisco Ios	Version 12.3yd
Cisco Ios	Version 12.3ye
Cisco Ios	Version 12.3yf
Cisco Ios	Version 12.3yg
Cisco Ios	Version 12.3yh
Cisco Ios	Version 12.3yi
Cisco Ios	Version 12.3yj
Cisco Ios	Version 12.3yk
Cisco Ios	Version 12.3yl
Cisco Ios	Version 12.3ym
Cisco Ios	Version 12.3yn
Cisco Ios	Version 12.3yq
Cisco Ios	Version 12.3yr
Cisco Ios	Version 12.3ys
Cisco Ios	Version 12.3yt
Cisco Ios	Version 12.3yu
Cisco Ios	Version 12.3yw
Cisco Ios	Version 12.3yx
Cisco Ios	Version 12.3yz
Cisco Ios	Version 12.3za
Cisco Ios	Version 12.4
Cisco Ios	Version 12.4(11)md
Cisco Ios	Version 12.4(15)md
Cisco Ios	Version 12.4(1)
Cisco Ios	Version 12.4(1b)
Cisco Ios	Version 12.4(1c)
Cisco Ios	Version 12.4(22)md
Cisco Ios	Version 12.4(22)mda
Cisco Ios	Version 12.4(23)
Cisco Ios	Version 12.4(24)md1
Cisco Ios	Version 12.4(24)md2
Cisco Ios	Version 12.4(24)md3
Cisco Ios	Version 12.4(24)md4
Cisco Ios	Version 12.4(24)md
Cisco Ios	Version 12.4(24)mda
Cisco Ios	Version 12.4(24)t1
Cisco Ios	Version 12.4(2)mr1
Cisco Ios	Version 12.4(2)mr
Cisco Ios	Version 12.4(2)t1
Cisco Ios	Version 12.4(2)t2
Cisco Ios	Version 12.4(2)t3
Cisco Ios	Version 12.4(2)t4
Cisco Ios	Version 12.4(2)t
Cisco Ios	Version 12.4(2)xa
Cisco Ios	Version 12.4(2)xb2
Cisco Ios	Version 12.4(2)xb
Cisco Ios	Version 12.4(3)
Cisco Ios	Version 12.4(3)t2
Cisco Ios	Version 12.4(3a)
Cisco Ios	Version 12.4(3b)
Cisco Ios	Version 12.4(3d)
Cisco Ios	Version 12.4(4)mr
Cisco Ios	Version 12.4(4)t2
Cisco Ios	Version 12.4(4)t
Cisco Ios	Version 12.4(5)
Cisco Ios	Version 12.4(5b)
Cisco Ios	Version 12.4(6)t1
Cisco Ios	Version 12.4(6)t
Cisco Ios	Version 12.4(7)
Cisco Ios	Version 12.4(7a)
Cisco Ios	Version 12.4(8)
Cisco Ios	Version 12.4(9)t
Cisco Ios	Version 12.4gc
Cisco Ios	Version 12.4ja
Cisco Ios	Version 12.4jda
Cisco Ios	Version 12.4jdc
Cisco Ios	Version 12.4jdd
Cisco Ios	Version 12.4jk
Cisco Ios	Version 12.4jl
Cisco Ios	Version 12.4jma
Cisco Ios	Version 12.4jmb
Cisco Ios	Version 12.4jx
Cisco Ios	Version 12.4md
Cisco Ios	Version 12.4mda
Cisco Ios	Version 12.4mdb
Cisco Ios	Version 12.4mr
Cisco Ios	Version 12.4mra
Cisco Ios	Version 12.4xm
Cisco Ios	Version 12.4xn
Cisco Ios	Version 12.4xp
Cisco Ios	Version 12.4xq
Cisco Ios	Version 12.4xr
Cisco Ios	Version 12.4xt
Cisco Ios	Version 12.4xv
Cisco Ios	Version 12.4xw
Cisco Ios	Version 12.4xy
Cisco Ios	Version 12.4xz
Cisco Ios	Version 12.4ya
Cisco Ios	Version 12.4yb
Cisco Ios	Version 12.4yd
Cisco Ios	Version 12.4ye
Cisco Ios	Version 12.4yg
Cisco Ios	Version 15.0
Cisco Ios	Version 15.0(1)se
Cisco Ios	Version 15.1
Cisco Ios	Version 15.2

Configuration C

20 vulnerable

Vulnerable Software	Affected Versions
Cisco Ios Xe	Version 3.1.0s
Cisco Ios Xe	Version 3.1.0sg
Cisco Ios Xe	Version 3.1.1s
Cisco Ios Xe	Version 3.1.1sg
Cisco Ios Xe	Version 3.1.2s
Cisco Ios Xe	Version 3.1.3s
Cisco Ios Xe	Version 3.2.0s
Cisco Ios Xe	Version 3.2.0sg
Cisco Ios Xe	Version 3.2.0xo
Cisco Ios Xe	Version 3.2.1s
Cisco Ios Xe	Version 3.2.1sg
Cisco Ios Xe	Version 3.2.2s
Cisco Ios Xe	Version 3.2.2sg
Cisco Ios Xe	Version 3.2.3sg
Cisco Ios Xe	Version 3.2.4sg
Cisco Ios Xe	Version 3.3.0s
Cisco Ios Xe	Version 3.3.0sg
Cisco Ios Xe	Version 3.3.1s
Cisco Ios Xe	Version 3.3.2s
Cisco Ios Xe	Version 3.3.3s