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CVE-2012-4623

N/A

Published: September 27, 2012 at 12:00 AM UTC

Updated: June 16, 2026 at 11:45 PM UTC

2 products affected across 1 vendorIOSIOS Xe

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Severity

N/A

Exploit prediction

EPSS 3%

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

IOS · Cisconpm

95%

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

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20120926-dhcpv6

References (5)

VDB Entryx_refsource_OSVDB

Source: [email protected]

http://osvdb.org/85810

Vendor Advisoryx_refsource_CISCO

Source: [email protected]

http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20120926-dhcpv6

VDB Entryx_refsource_BID

Source: [email protected]

http://www.securityfocus.com/bid/55700

VDB Entryx_refsource_SECTRACK

Source: [email protected]

http://www.securitytracker.com/id?1027577

VDB Entryx_refsource_XF

Source: [email protected]

https://exchange.xforce.ibmcloud.com/vulnerabilities/78885

CVSS

7.8HIGH[email protected]

Confidentiality: NONE
Integrity: NONE
Availability: COMPLETE

Vector?

Quick Info

StatusMODIFIED

CWE

CWE-20

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