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Case File

CVE-2011-3276

HIGH · CVSS 7.8 EPSS 1.77%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2011-10-03 · Last synced 2026-08-04

CyberRota Analysis

This is a high severity vulnerability with a CVSS score of 7.8. It affects Cisco. It may be remotely exploitable. It may lead to a denial-of-service condition.

CVE
CVE-2011-3276
Severity
HIGH
CVSS
7.8
EPSS
1.77%
Cisco

Original NVD Description

Unspecified vulnerability in the NAT implementation in Cisco IOS 12.1 through 12.4 and 15.0 through 15.1, and IOS XE 3.1.xSG, allows remote attackers to cause a denial of service (device reload or hang) by sending crafted SIP packets to TCP port 5060, aka Bug ID CSCso02147.