CVE-2011-1640

HIGH

Cisco IOS 12.2 < 12.2(33)SXJ1 - Denial of Service via LLDP Management Address TLV

Title source: llm
STIX 2.1

Description

The ethernet-lldp component in Cisco IOS 12.2 before 12.2(33)SXJ1 does not properly support a large number of LLDP Management Address (MA) TLVs, which allows remote attackers to cause a denial of service (device crash) via crafted LLDPDUs, aka Bug ID CSCtj22354.

References (1)

Core 1
Core References

Scores

CVSS v3 7.5
EPSS 0.0177
EPSS Percentile 75.3%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Details

CWE
CWE-400
Status published
Products (1)
cisco/ios 12.2 - 12.2\(33\)sxj1
Published Oct 22, 2011
Tracked Since Feb 18, 2026