CVE-2025-12205

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.

• CWE-119
• CWE-416
• CWE-416

• https://shimo.im/docs/ZzkLMVMLOzIRlpAQ/Exploit, Third Party Advisory
• https://vuldb.com/?ctiid.329875Permissions Required, VDB Entry
• https://vuldb.com/?id.329875Third Party Advisory, VDB Entry
• https://vuldb.com/?submit.673225Third 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/2025/10/27/8Issue Tracking, Mailing List

Published

Oct 27, 2025

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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