High 7.8Published Oct 27, 2025

CVE-2025-12205A vulnerability was detected in Kamailio 5.5.

Updated under an hour ago (2026-10-19 07:10 UTC)

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No exploitation reported and no EPSS estimate yet.

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Every CVE for kamailio

Exploited in the last 30 days

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.

CVSS: 7.8 HIGH (v3.1, NVD)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE): CWE-119, CWE-416
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Not given
NVD analysis: Modified
Record last updated: Jun 17, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

kamailio kamailio kamailio:kamailio	5.5.0	NVD

References

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

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.