CVE-2025-36512 Denial of service in Comdb2

High 7.5 Published 22 Jul 2025 Updated 3 Nov 2025

An attacker can cause a denial of service in Bloomberg Comdb2 by sending a crafted protocol buffer message over TCP.

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-2025-36512?

CVE-2025-36512 is a high-severity denial of service vulnerability in Bloomberg Comdb2, published on 22 Jul 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

A denial of service vulnerability exists in the Bloomberg Comdb2 8.1 database when handling a distributed transaction heartbeat. A specially crafted protocol buffer message can lead to a denial of service. An attacker can simply connect to a database instance over TCP and send the crafted message to trigger this vulnerability.

Weakness: CWE-617

Which versions are affected by CVE-2025-36512?

It affects 1 product.

Products include Bloomberg Comdb2.

How do I fix CVE-2025-36512?

No fix has been published for CVE-2025-36512 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-2025-36512 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-36512 exists.

Sources

Also known as GHSA-w7m3-x4xv-2qpw.