CVE-2011-3279
Cisco IOS 12.1-12.4 and 15.0-15.1 and IOS XE 3.1.xSG - Denial of Service via Malformed SIP Packet
Title source: llmDescription
The provider-edge MPLS 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) via a malformed SIP packet to UDP port 5060, aka Bug ID CSCti98219.
References (3)
Core 3
Core References
Third Party Advisory vdb-entry
signature
x_refsource_oval
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A13781
Vendor Advisory x_refsource_confirm
http://tools.cisco.com/security/center/viewAlert.x?alertId=24121
Vendor Advisory vendor-advisory
x_refsource_cisco
http://www.cisco.com/en/US/products/products_security_advisory09186a0080b95d4d.shtml
Scores
EPSS
0.0256
EPSS Percentile
83.4%
Details
Status
published
Products (3)
cisco/ios
12.1 - 12.4
cisco/ios_xe
3.1.0sg
cisco/ios_xe
3.1.1sg
Published
Oct 03, 2011
Tracked Since
Feb 18, 2026