VULNERABILITY INTELLIGENCE
CVE-2007-5537
CVSS score7.8 HIGH
EPSS probability1.98%
CISA KEVNot currently listed
Published2007-10-18
Last modified2026-06-16
CVSS vectorAV:N/AC:L/Au:N/C:N/I:N/A:C
Description
Cisco Unified Communications Manager (CUCM, formerly CallManager) 5.1 before 5.1(2), and Unified CallManager 5.0, allow remote attackers to cause a denial of service (kernel panic) via a flood of SIP INVITE messages to UDP port 5060, which triggers resource exhaustion, aka CSCsi75822.