Buffer overflow in Kamailio
CVE-2026-108822
A vulnerability was detected in Kamailio up to 6.0.7/6.1.3. The affected element is the function isup_get_calling_party of the file src/modules/sipt/ss7_parser.c of the component sipt Module. The manipulation of the argument length results in buffer overflow. The attack may be performed from remote. Upgrading to version 6.0.8 and 6.1.4 is sufficient to fix this issue. The patch is identified as 3667bebf8d0bea07ed16218fd921d07db87aeb21. Upgrading the affected component is advised.
Vulnerability class: Buffer Overflow
Published .
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
- Kamailio — versions 6.0.0, 6.0.1, 6.0.2
Weakness classification (CWE)
References
- github.com/kamailio/kamailio/ (product)
- github.com/kamailio/kamailio/commit/3667bebf8d0bea07ed16218fd921d07db87aeb21 (patch)
- github.com/kamailio/kamailio/pull/4905 (issue-tracking, patch)
- github.com/kamailio/kamailio/releases/tag/6.0.8 (patch)
- vuldb.com/cve/CVE-2026-108822 (third-party-advisory)
- vuldb.com/submit/964495 (third-party-advisory)
- vuldb.com/vuln/416599 (technical-description, vdb-entry)
- vuldb.com/vuln/416599/cti (signature, permissions-required)
Frequently asked questions
- What is CVE-2026-108822?
- CVE-2026-108822 is a medium-severity vulnerability in Kamailio, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 5.3/10. Published 2026-10-12.
- How severe is CVE-2026-108822?
- Medium severity. CVSS v3 base score is 5.3 out of 10.