Description
An issue in kamailio v.6.1.1 and before allows a remote attacker to cause a denial of service via the IMS P-CSCF registration handling components
Affected products
kamailio: kamailio
References3
- github.com/kamailio/kamailio/issues/4670 ExploitIssue TrackingVendor Advisory
- github.com/kamailio/kamailio/issues/4670 ExploitIssue TrackingVendor Advisory
- github.com/kamailio/kamailio/commit/91c5ca751799db4f25a28a49535… Patch
Metrics
- CVSS 3.1
-
7.5
HIGH
Score source: CNA
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - EPSS — exploit probability
- 1% percentile: 48 · as of 8 November 2026
- CWE
- CWE-400
Could this be exploited in your environment?
A patch closes the known hole. A penetration test shows what an attacker can still reach — with proof.