CVE-2025-12205

Medium

Description

A vulnerability was detected in Kamailio 5.5. The affected element is the function sr_push_yy_state of the file src/core/cfg.lex of the component Configuration File Handler. The manipulation results in use after free. The attack must be initiated from a local position. The exploit is now public and may be used. The real existence of this vulnerability is still doubted at the moment. 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.

SeverityMedium
CVSS5.3
Exploit probability—
ProductKamailio
PublishedOct 27, 2025
First seenOct 27, 2025

How to fix

Sources list no fixed version or patch link for this vulnerability.

Affected products

ProductAffected versionsFixed in
kamailio kamailio5.5.0—

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CVE-2025-12205 · Kamailio · Dark Radar