Vulnerability · Published Sep 1, 2026 · Assigned by mitre
CVE-2026-52023
High 7.5
In plain English
A high-severity race condition in the kamailio package (Debian). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 39% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)7.5High
Exploit odds (30 days)0.4%top 60.9% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official 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()
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | kamailio | no fix listed | DEBIAN-CVE-2026-52023 |
| Debian:13 | kamailio | 6.0.1-1+deb13u2 | DEBIAN-CVE-2026-52023 |
| Debian:14 | kamailio | 6.1.4-1 | DEBIAN-CVE-2026-52023 |
| Ubuntu:22.04:LTS | kamailio | no fix listed | UBUNTU-CVE-2026-52023 |
| Ubuntu:24.04:LTS | kamailio | no fix listed | UBUNTU-CVE-2026-52023 |
| Ubuntu:26.04:LTS | kamailio | no fix listed | UBUNTU-CVE-2026-52023 |
| Ubuntu:26.10 | kamailio | no fix listed | UBUNTU-CVE-2026-52023 |
Affected products (as reported)
Weakness: CWE-362 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H