NULL Pointer Dereference Affecting kamailio package, versions *


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.21% (12th percentile)

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  • Snyk IDSNYK-ECHOLATEST-KAMAILIO-19434978
  • published31 Aug 2026
  • disclosed27 Oct 2025

Introduced: 27 Oct 2025

CVE-2025-12207  (opens in a new tab)
CWE-476  (opens in a new tab)

How to fix?

There is no fixed version for Echo:latest kamailio.

NVD Description

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

A vulnerability has been found in Kamailio 5.5. This affects the function yyerror_at of the file src/core/cfg.y of the component Grammar Rule Handler. Such manipulation leads to null pointer dereference. The attack needs to be performed locally. The exploit has been disclosed to the public and may be used. The actual existence of this vulnerability is currently in question. 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