# CVE-2026-52023: kamailio: An issue in kamailio v.6.1.1 and before allows a remote attacker to cause a denial of service via the ims_registrar_p...

CVE-2026-52023 is fixed in kamailio on 1 platform, first by DEBIAN-CVE-2026-52023, released September 5, 2026. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2026-52023
- Priority: High
- CVSS: 7.5 (high)
- EPSS: 0.0045
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Sep 1, 2026

## Description

An issue in kamailio v.6.1.1 and before allows a remote attacker to cause a denial of service via the ims_registrar_pcscf module, specifically the pcscf_save_pending/save_pending path and security-agreement parsing in sec_agree.c:parse_sec_agree()

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | kamailio Debian 13.5 (trixie) | 6.0.1-1+deb13u2 | [DEBIAN-CVE-2026-52023](https://patchblox.com/security/data/fix/linux/debian-cve-2026-52023.md) | Sep 5, 2026 |
| Linux | kamailio Debian 14 | 6.1.4-1 | [DEBIAN-CVE-2026-52023](https://patchblox.com/security/data/fix/linux/debian-cve-2026-52023.md) | Sep 5, 2026 |

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Data as of 2026-11-08T06:59:42Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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