Unscored severity · published Aug 27, 2009
CVE-2009-2053
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(2a)su1, and 7.1 before 7.1(2) allows remote…
–
CVSS
3.4%
EPSS
No
On KEV
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(2a)su1, and 7.1 before 7.1(2) allows remote attackers to cause a denial of service (file-descriptor exhaustion and SCCP outage) via a flood of TCP packets, aka Bug ID CSCsx32236.
Exploitation
Is it being used?
Exploit prediction (EPSS)3.4% · higher than 89% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
UC
Unified Communications Manager · Cisco
5.0 before 5.1\(3g\); 6.1\(1\) before 6.1\(4\); 7.0 before 7.0\(2a\)su1; 7.1 before 7.1\(2\) · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2009-2053
CVE.org
https://www.cve.org/CVERecord?id=CVE-2009-2053
Broken Link
http://osvdb.org/57455
Vendor Advisory
http://secunia.com/advisories/36498
Vendor Advisory
http://secunia.com/advisories/36499
Patch
http://www.cisco.com/en/US/products/products_security_advisory09186a0080af2d11.shtml
Third Party Advisory
http://www.securityfocus.com/bid/36152
Third Party Advisory
http://www.securitytracker.com/id?1022775
More from Unified Communications Manager
9.8
CVE-2026-20045
Cisco Unified Communications Products Remote Code Execution Vulnerability
8.6
CVE-2026-20230
Cisco Unified Communications Manager Server-Side Request Forgery Vulnerability
10.0
CVE-2025-20309
A vulnerability in Cisco Unified Communications Manager (Unified CM) and Cisco Unified Communications Manager Session Management Edition (Unified CM SME) could allow an…
10.0
CVE-2024-20253
A vulnerability in multiple Cisco Unified Communications and Contact Center Solutions products could allow an unauthenticated, remote attacker to execute arbitrary code on an…
9.8
CVE-2017-12337
A vulnerability in the upgrade mechanism of Cisco collaboration products based on the Cisco Voice Operating System software platform could allow an unauthenticated, remote…