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.
Attack Parameters
Attack Vector
Local
Requires local access
Attack Complexity
Low
Easy to exploit
Privileges Required
Low
Basic privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
Low
Partial data leak
Integrity
Low
Partial data modification
Availability
Low
Partial disruption
CVSS Vector v3.1
Weakness Type (CWE)
Vulnerable Products 1
| Configuration | From (including) | Up to (excluding) |
|---|---|---|
|
Kamailio Kamailio
cpe:2.3:a:kamailio:kamailio:5.5.0:*:*:*:*:*:*:*
|
— | — |
References 8
https://shimo.im/docs/loqeMWMyZGtpEYqn/
cna@vuldb.com
https://vuldb.com/?ctiid.329874
cna@vuldb.com
https://vuldb.com/?id.329874
cna@vuldb.com
https://vuldb.com/?submit.673224
cna@vuldb.com
https://www.openwall.com/lists/oss-security/2025/11/02/3
cna@vuldb.com
http://www.openwall.com/lists/oss-security/2025/10/27/12
af854a3a-2127-422b-91ae-364da2661108
http://www.openwall.com/lists/oss-security/2025/10/28/1
af854a3a-2127-422b-91ae-364da2661108
https://www.openwall.com/lists/oss-security/2025/10/27/8
af854a3a-2127-422b-91ae-364da2661108