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.

References

https://vuldb.com/?submit.673225

https://vuldb.com/?id.329875

https://shimo.im/docs/ZzkLMVMLOzIRlpAQ/

https://www.openwall.com/lists/oss-security/2025/11/02/3

https://www.openwall.com/lists/oss-security/2025/10/27/8

https://vuldb.com/?ctiid.329875

http://www.openwall.com/lists/oss-security/2025/10/27/8

http://www.openwall.com/lists/oss-security/2025/10/27/12

Details

Source: Mitre, NVD

Published: 2025-10-27

Updated: 2025-11-04

Risk Information

CVSS v2

Base Score: 4.3

Vector: CVSS2#AV:L/AC:L/Au:S/C:P/I:P/A:P

Severity: Medium

CVSS v3

Base Score: 7.8

Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Severity: High

CVSS v4

Base Score: 4.8

Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N

Severity: Medium

EPSS

EPSS: 0.00013