NULL Pointer Dereference Affecting kamailio package, versions *


Severity

Recommended
low

Based on Debian security rating.

Threat Intelligence

EPSS
0.02% (4th percentile)

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  • Snyk IDSNYK-DEBIAN14-KAMAILIO-13722627
  • published28 Oct 2025
  • disclosed27 Oct 2025

Introduced: 27 Oct 2025

NewCVE-2025-12206  (opens in a new tab)
CWE-476  (opens in a new tab)

How to fix?

There is no fixed version for Debian:14 kamailio.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kamailio package and not the kamailio package as distributed by Debian. See How to fix? for Debian:14 relevant fixed versions and status.

A flaw has been found in Kamailio 5.5. The impacted element is the function rve_is_constant of the file src/core/rvalue.c. This manipulation causes null pointer dereference. The attack needs to be launched locally. The exploit has been published and may be used. It is still unclear if this vulnerability genuinely exists. This attack requires manipulating config files which might not be a realistic scenario in many cases. The vendor was contacted early about this disclosure but did not respond in any way.

CVSS Base Scores

version 3.1