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 · FIRST.org
3.4%probability of exploitation in the next 30 days
Higher than 88% of scored CVEs
EPSS (Exploit Prediction Scoring System) estimates, from observed exploitation activity, how likely a CVE is to be exploited in the next 30 days. It complements CVSS, which measures severity, not likelihood. Score of 2026-10-19, recomputed daily by FIRST.org.
CVSS v2.0 Score
Information
- Published
- 27 août 2009
- Updated
- 16 juin 2026
- Status
- Modified
- Source
- psirt@cisco.com
Affected products
Weaknesses (CWE)
References (14)
- http://osvdb.org/57453Broken Link
- http://secunia.com/advisories/36498Third Party Advisory
- http://secunia.com/advisories/36499Third Party Advisory
- http://www.securityfocus.com/bid/36152Third Party AdvisoryVDB Entry
- http://www.securitytracker.com/id?1022775Third Party AdvisoryVDB Entry
- http://osvdb.org/57453Broken Link
- http://secunia.com/advisories/36498Third Party Advisory
- http://secunia.com/advisories/36499Third Party Advisory
- http://www.securityfocus.com/bid/36152Third Party AdvisoryVDB Entry
- http://www.securitytracker.com/id?1022775Third Party AdvisoryVDB Entry
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