CVE-2025-12204
Kamailio Configuration File rvalue.c rve_destroy heap-based overflow
LOW 1.9EPSS 0.3%
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.
- Affected
- Kamailio
- CVSS v4.0 VULDB
- 1.9 LOW
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X - CVSS v3.1 NVD
- 7.8 HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - CVSS v3.1 VULDB
- 5.3 MEDIUM
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L - CVSS v2.0 VULDB
- 4.3 MEDIUM
AV:L/AC:L/Au:S/C:P/I:P/A:P - EPSS
- 0.30% chance of exploitation in the next 30 days, 21st percentile
- Published
- 2025-10-27
- Updated
- 2026-02-24
Proof-of-concept exploits (1)
Security advisories
- https://shimo.im/docs/loqeMWMyZGtpEYqn
- https://vuldb.com/?id.329874
- https://vuldb.com/?submit.673224
- https://www.openwall.com/lists/oss-security/2025/10/27/8