4.8
Medium
CVE-2025-12205 A vulnerability was detected in Kamailio 5.5
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.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| Kamailio | 5.5 | No fix stated |
References
- VDB-329875 | Kamailio Configuration File cfg.lex sr_push_yy_state use after free vuldb.com
- VDB-329875 | CTI Indicators (IOB, IOC, IOA) vuldb.com
- Submit #673225 | Kamailio Project Kamailio SIP Server 5.5 Use After Free vuldb.com
- shimo.im shimo.im
- www.openwall.com www.openwall.com
Timeline
- Published
- Last modified
Other CVEs of Kamailio
The 7 CVEs of Kamailio →
CVE-2026-108822
A vulnerability was detected in Kamailio up to 6.0.7/6.1.3
6.9
Medium
CVE-2026-93962
A weakness has been identified in Kamailio up to 5.8.8/6.0.7/6.1.4/6.2.0-dev1
6.9
Medium
CVE-2026-82608
A vulnerability was determined in Kamailio up to 5.5.0/6.0.7
5.3
Medium
CVE-2025-12207
A vulnerability has been found in Kamailio 5.5
4.8
Medium