CVE-2012-4623 — Improper Input Validation in Cisco IOS

CWE-20 — Improper Input ValidationCWE-3994 documents4 sources
Severity
7.8HIGHNVD
EPSS
0.8%
top 25.94%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
2
Cisco IOSCisco IOS XE
Timeline
PublishedSep 27
Latest updateMay 17

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.

CVSS vector

AV:N/AC:L/C:N/I:N/A:CExploitability: 10.0 | Impact: 6.9

Affected Packages2 packages

▶NVDcisco/ios293 versions+292
▶NVDcisco/ios_xe45 versions+44

🔴Vulnerability Details

2
GHSA
GHSA-j797-37x4-fmcf: The DHCPv6 server in Cisco IOS 12↗2022-05-17
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CVEList
CVE-2012-4623: The DHCPv6 server in Cisco IOS 12↗2012-09-27
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📋Vendor Advisories

1
Cisco
Cisco IOS Software DHCP Version 6 Server Denial of Service Vulnerability↗2012-09-26
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CVE-2012-4623 — Improper Input Validation in Cisco IOS | cvebase