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.
References
| Link | Resource |
|---|---|
| https://shimo.im/docs/vVqRMVMlrycMO63y/ | Exploit Third Party Advisory |
| https://vuldb.com/?ctiid.329877 | Permissions Required VDB Entry |
| https://vuldb.com/?id.329877 | Third Party Advisory VDB Entry |
| https://vuldb.com/?submit.673241 | 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 |
| https://shimo.im/docs/vVqRMVMlrycMO63y | Exploit Third Party Advisory |
Configurations
History
19 Oct 2026, 13:10
| Type | Values Removed | Values Added |
|---|---|---|
| Summary |
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Information
Published : 2025-10-27 03:15
Updated : 2026-10-19 13:10
NVD link : CVE-2025-12207
Mitre link : CVE-2025-12207
CVE.ORG link : CVE-2025-12207
JSON object : View
Products Affected
kamailio
- kamailio