CVE-2025-12207 — Kamailio Grammar Rule cfg.y yyerror_at null pointer dereference
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…
Published: 2025-10-27 · CVSS: 4.8 · CVSS 4.0
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7