AUGUST 4, 2026
Live Feed
Return to register
Case File

CVE-2012-3949

HIGH · CVSS 7.8 EPSS 3.20%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2012-09-27 · Last synced 2026-08-04

Field Assessment

AI analysis pending.

CVE
CVE-2012-3949
Severity
HIGH
CVSS
7.8
EPSS
3.20%
Cisco

Original Filing — NVD Description

The SIP implementation in Cisco Unified Communications Manager (CUCM) 6.x and 7.x before 7.1(5b)su5, 8.x before 8.5(1)su4, and 8.6 before 8.6(2a)su1; Cisco IOS 12.2 through 12.4 and 15.0 through 15.2; and Cisco IOS XE 3.3.xSG before 3.3.1SG, 3.4.xS, and 3.5.xS allows remote attackers to cause a denial of service (service crash or device reload) via a crafted SIP message containing an SDP session description, aka Bug IDs CSCtw66721, CSCtj33003, and CSCtw84664.