CVE-2009-0057 Denial of service in n/a
Remote attackers can cause a voice service outage in Cisco Unified Communications Manager by sending malformed input over a TCP session.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2009-0057?
CVE-2009-0057 is a medium-severity denial of service vulnerability in Cisco Unified Communications Manager, published on 22 Jan 2009. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The Certificate Authority Proxy Function (CAPF) service in Cisco Unified Communications Manager 5.x before 5.1(3e) and 6.x before 6.1(3) allows remote attackers to cause a denial of service (voice service outage) by sending malformed input over a TCP session in which the "client terminates prematurely."
Weakness: CWE-20
Which versions are affected by CVE-2009-0057?
It affects 1 product.
Products include Cisco Unified Communications Manager.
How do I fix CVE-2009-0057?
No fix has been published for CVE-2009-0057 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2009-0057 being exploited?
There is no known exploitation of CVE-2009-0057 in the wild and no public exploit code.
Other vulnerabilities in Cisco Unified Communications Manager
- CVE-2026-20230 Cisco Unified Communications Manager Server-Side Request Forgery (SSRF)
- CVE-2026-20045 Cisco Unified Communications Products Code Injection
- CVE-2025-20309 Cisco Unified Communications Manager Static SSH Credentials Vulnerability
- CVE-2011-1643 Information disclosure in n/a
- CVE-2024-20253 Deserialization in Cisco Packaged Contact Center Enterprise
Sources
Also known as GHSA-mcx4-vf2j-97x9.