CVE-2009-2051

no score yetEPSS 3.4%

cisco: no CVSS score yet. EPSS 3.4% chance of exploitation in the next 30 days.

Cisco IOS 12.2 through 12.4 and 15.0 through 15.1, Cisco IOS XE 2.5.x and 2.6.x before 2.6.1, and Cisco Unified Communications Manager (aka CUCM, formerly CallManager) 4.x, 5.x before 5.1(3g), 6.x before 6.1(4), and 7.x before 7.1(2) allow remote attackers to cause a denial of service (device reload or voice-services outage) via a malformed SIP INVITE message that triggers an improper call to the sipSafeStrlen function, aka Bug IDs CSCsz40392 and CSCsz43987.

EPSS: 3.4% chance of exploitation in the next 30 days; higher than 88% of CVEs (scores of 2026-10-31)
Published: 2009-08-27
Modified: 2026-06-16
Record from: the NVD, synced 2026-10-19

Affected

cisco:ios
cisco:ios_xe
cisco:unified_communications_manager

References

http://osvdb.org/57453
http://secunia.com/advisories/36498
http://secunia.com/advisories/36499
http://www.cisco.com/en/US/products/products_security_advisory09186a0080af2d11.shtml
http://www.cisco.com/en/US/products/products_security_advisory09186a0080b4a30f.shtml

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