Is CVE-2025-12204 actively exploited?

No active exploitation of CVE-2025-12204 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2025-12204 be exploited remotely?

No. CVE-2025-12204 requires local access to exploit.

What is the CVSS score of CVE-2025-12204?

CVE-2025-12204 has a CVSS score of 7.8 (HIGH).

HOME VULNERABILITIESCVE-2025-12204

HIGH

CVE-2025-12204

CWE-119Published: October 27, 2025· Updated: Jun 17, 2026

7.8

CVSS v3.1

Official Description

A security vulnerability has been detected in Kamailio 5.5. Impacted is the function rve_destroy of the file src/core/rvalue.c of the component Configuration File Handler. The manipulation leads to heap-based buffer overflow. The attack must be carried out locally. The exploit has been disclosed publicly and may be used. There is ongoing doubt regarding the real existence of this vulnerability. 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.

NVD Source

Technical Analysis

CVE-2025-12204 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 7.8.

From a weakness classification perspective (CWE-119): Buffer overflow vulnerabilities can lead to arbitrary code execution or denial of service by corrupting adjacent memory.