CVE-2011-3280

HIGH

Cisco IOS 12.1-12.4 and 15.0-15.1 and IOS XE 3.1.xSG - Denial of Service via SIP Packet Processing

Title source: llm

Description

Memory leak 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 (memory consumption or device reload) by sending crafted SIP packets to UDP port 5060, aka Bug ID CSCtj04672.

References (2)

Core 2

Core References

Vendor Advisory x_refsource_confirm

http://tools.cisco.com/security/center/viewAlert.x?alertId=24120

Vendor Advisory vendor-advisory x_refsource_cisco

http://www.cisco.com/en/US/products/products_security_advisory09186a0080b95d4d.shtml

Scores

CVSS v3 7.5

EPSS 0.0180

EPSS Percentile 76.3%

Attack Vector NETWORK

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Details

CWE

CWE-399

Status published

Products (50)

cisco/ios 12.1

cisco/ios 12.1e

cisco/ios 12.2

cisco/ios 12.2b

cisco/ios 12.2bc

cisco/ios 12.2bx

cisco/ios 12.2cx

cisco/ios 12.2cz

cisco/ios 12.2ew

cisco/ios 12.2ewa

... and 40 more

Published Oct 03, 2011

Tracked Since Feb 18, 2026