CVE-2025-12206
Kamailio rvalue.c rve_is_constant null pointer dereference
CVSS Score
3.3
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-476 CWE-404 |
| Vendor | n/a |
| Product | kamailio |
| Published | Oct 27, 2025 |
| Last Updated | Feb 24, 2026 |
Stay Ahead of the Next One
Get instant alerts for n/a kamailio
Be the first to know when new low vulnerabilities affecting n/a kamailio are published — delivered to Slack, Telegram or Discord.
Get Free Alerts →
Free · No credit card · 60 sec setup
CVSS v3 Breakdown
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:R Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Affected Versions
n/a / Kamailio
5.5
References
vuldb.com: https://vuldb.com/?id.329876 vuldb.com: https://vuldb.com/?ctiid.329876 vuldb.com: https://vuldb.com/?submit.673240 shimo.im: https://shimo.im/docs/aBAYMVMB2jUP9jAj/ openwall.com: https://www.openwall.com/lists/oss-security/2025/11/02/3 openwall.com: https://www.openwall.com/lists/oss-security/2025/10/27/8 openwall.com: http://www.openwall.com/lists/oss-security/2025/10/27/12 openwall.com: http://www.openwall.com/lists/oss-security/2025/10/27/8 shimo.im: https://shimo.im/docs/aBAYMVMB2jUP9jAj
Credits
🔍 zh_vul (VulDB User) VulDB