CVE-2025-12206
mediumpriority · track · 22EPSS 0.002 · 15 %ileEUUSEPSS · scored 2026-10-28
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.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · low–medium · 1.1–5.5
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (2)
Products and version ranges known to be affected.
also known as (3)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (24)
External citations — patches, advisories, analysis.
- http://www.openwall.com/lists/oss-security/2025/10/27/12cnnvd
- http://www.openwall.com/lists/oss-security/2025/10/27/8cnnvd
- https://access.redhat.com/security/cve/cve-2025-12206cnnvd
- https://shimo.im/docs/aBAYMVMB2jUP9jAj/cnnvd
- https://vuldb.com/?ctiid.329876cnnvd
- https://vuldb.com/?id.329876cnnvd
- https://vuldb.com/?submit.673240cnnvd
- https://www.kamailio.org/w/download/Patchcnnvd
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