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
| Link | Resource |
|---|---|
| https://shimo.im/docs/ZzkLMVMLOzIRlpAQ/ | Exploit Third Party Advisory |
| https://vuldb.com/?ctiid.329875 | Permissions Required VDB Entry |
| https://vuldb.com/?id.329875 | Third Party Advisory VDB Entry |
| https://vuldb.com/?submit.673225 | Third Party Advisory VDB Entry |
| https://www.openwall.com/lists/oss-security/2025/11/02/3 | |
| http://www.openwall.com/lists/oss-security/2025/10/27/12 | |
| http://www.openwall.com/lists/oss-security/2025/10/27/8 | |
| https://www.openwall.com/lists/oss-security/2025/10/27/8 | Issue Tracking Mailing List |
Configurations
History
19 Oct 2026, 13:10
| Type | Values Removed | Values Added |
|---|---|---|
| Summary |
|
Information
Published : 2025-10-27 03:15
Updated : 2026-10-19 13:10
NVD link : CVE-2025-12205
Mitre link : CVE-2025-12205
CVE.ORG link : CVE-2025-12205
JSON object : View
Products Affected
kamailio
- kamailio