CVE-2012-3949

high Cisco
CVSS v3 Base Score
7.8
AV:N/AC:L/Au:N/C:N/I:N/A:C
EPSS Score
0.9%
Exploitation probability in 30 days
Top 24% most likely to be exploited
Attack Characteristics
Attack Vector
Network
Attack Complexity
Low
Confidentiality
None
Integrity
None
Availability
C
Published: September 27, 2012 (4977 days ago)
Last Modified: April 29, 2026
Vendor: Cisco
Source: 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.

CWE

CWE-20

Affected Products

cisco unified communications managercisco ioscisco ios xe

References

🔗 osvdb.org 🔗 secunia.com 🔗 tools.cisco.com 🔗 tools.cisco.com 🔗 www.securityfocus.com