CVE-2007-1826 Denial of service in n/a

High 7.8 Published 2 Apr 2007 Updated 7 Aug 2024

Remote attackers can cause denial of service in Cisco Unified CallManager and Presence Server by sending a specific UDP packet to port 8500.

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-2007-1826?

CVE-2007-1826 is a high-severity denial of service vulnerability in n/a, published on 2 Apr 2007. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Unspecified vulnerability in the IPSec Manager Service for Cisco Unified CallManager (CUCM) 5.0 before 5.0(4a)SU1 and Cisco Unified Presence Server (CUPS) 1.0 before 1.0(3) allows remote attackers to cause a denial of service (loss of cluster services) via a "specific UDP packet" to UDP port 8500, aka bug ID CSCsg60949.

Which versions are affected by CVE-2007-1826?

It affects 2 products.

Products include Cisco Unified Callmanager, Cisco Unified Presence Server.

How do I fix CVE-2007-1826?

No fix has been published for CVE-2007-1826 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-2007-1826 being exploited?

There is no known exploitation of CVE-2007-1826 in the wild and no public exploit code.

Sources

Also known as GHSA-vpg3-cpxr-xmc5.