VULNERABILITY INTELLIGENCE
CVE-2009-2052
CVSS score7.8 HIGH
EPSS probability3.98%
CISA KEVNot currently listed
Published2009-08-27
Last modified2026-06-16
CVSS vectorAV:N/AC:L/Au:N/C:N/I:N/A:C
Description
Cisco Unified Communications Manager (aka CUCM, formerly CallManager) 4.x, 5.x before 5.1(3g), 6.x before 6.1(4), 7.0 before 7.0(2), and 7.1 before 7.1(2); and Cisco Unified Presence 1.x, 6.x before 6.0(6), and 7.x before 7.0(4); allows remote attackers to cause a denial of service (TCP services outage) via a large number of TCP connections, related to "tracking of network connections," aka Bug IDs CSCsq22534 and CSCsw52371.
Primary references
- psirt@cisco.com — Vendor Advisory
- psirt@cisco.com — Vendor Advisory
- psirt@cisco.com — Third Party Advisory
- psirt@cisco.com — Third Party Advisory, VDB Entry
- psirt@cisco.com — Patch, Vendor Advisory
- psirt@cisco.com — Vendor Advisory
- psirt@cisco.com — Third Party Advisory, VDB Entry
- psirt@cisco.com — Third Party Advisory, VDB Entry
- psirt@cisco.com — Third Party Advisory, VDB Entry
- psirt@cisco.com — Third Party Advisory
- af854a3a-2127-422b-91ae-364da2661108 — Vendor Advisory
- af854a3a-2127-422b-91ae-364da2661108 — Vendor Advisory