CVE-2025-12206

3.3 LOW
Published: October 27, 2025 Modified: November 04, 2025

Description

A flaw has been found in Kamailio 5.5. The impacted element is the function rve_is_constant of the file src/core/rvalue.c. This manipulation causes null pointer dereference. The attack needs to be launched locally. The exploit has been published and may be used. It is still unclear if this vulnerability genuinely exists. 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.

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
https://shimo.im/docs/aBAYMVMB2jUP9jAj/
Source: cna@vuldb.com
Exploit Third Party Advisory
https://vuldb.com/?ctiid.329876
Source: cna@vuldb.com
Permissions Required VDB Entry
https://vuldb.com/?id.329876
Source: cna@vuldb.com
Third Party Advisory VDB Entry
https://vuldb.com/?submit.673240
Source: cna@vuldb.com
Third Party Advisory VDB Entry
http://www.openwall.com/lists/oss-security/2025/10/27/12
Source: af854a3a-2127-422b-91ae-364da2661108
http://www.openwall.com/lists/oss-security/2025/10/27/8
Source: af854a3a-2127-422b-91ae-364da2661108
https://www.openwall.com/lists/oss-security/2025/10/27/8
Source: af854a3a-2127-422b-91ae-364da2661108
Issue Tracking Mailing List
https://shimo.im/docs/aBAYMVMB2jUP9jAj
Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0
Exploit Third Party Advisory

9 reference(s) from NVD

Quick Stats

CVSS v3 Score
3.3 / 10.0
EPSS (Exploit Probability)
0.0%
6th percentile
Exploitation Status
Not in CISA KEV

Affected Vendors

kamailio