A security vulnerability has been detected in Kamailio 5.5. Impacted is the function rve_destroy of the file src/core/rvalue.c of the component Configuration File Handler. The manipulation leads to heap-based buffer overflow. The attack must be carried out locally. The exploit has been disclosed publicly and may be used. There is ongoing doubt regarding the real existence of this vulnerability. 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.
Fix
Nothing published yet: no patch, vendor advisory or mitigation reference on NVD, no vendor advisory in the News for this CVE, not in CISA's KEV, no fixed package version. BaselineWatch does not guess at one.
Change history 1
- First seenCVSS 1.9 · kamailioNVD modified 2026-10-19 16:10
Affected (CPE criteria) 1
cpe:2.3:a:kamailio:kamailio:5.5.0:*:*:*:*:*:*:*
References 8
- https://shimo.im/docs/loqeMWMyZGtpEYqn/ Exploit, Third Party Advisory
- https://vuldb.com/?ctiid.329874 Permissions Required, VDB Entry
- https://vuldb.com/?id.329874 Third Party Advisory, VDB Entry
- https://vuldb.com/?submit.673224 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/2025/10/28/1
- https://www.openwall.com/lists/oss-security/2025/10/27/8 Issue Tracking, Mailing List