CVE-2026-52022

An issue in kamailio v.6.1.1 and before allows a remote attacker to cause a denial of service via...

7.5 HighFix available

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

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: None

What an attacker can affect

Confidentiality: None
Integrity: None
Availability: High

Exploit likelihood

0.58%Up 0.4 points since Sep 2, 2026

What each source reports

CVE List Score used 7.5

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

Record: CVE-2026-52022
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness: CWE-400
Updated: 2026-11-02

EUVDEUVD-2026-69415 7.5

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

Record: EUVD-2026-69415
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated: 2026-11-02

GitHub AdvisoriesGHSA-6g2r-mqww-4r35 7.5

An issue in kamailio v.6.1.1 and before allows a remote attacker to cause a denial of service via...

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

Record: GHSA-6g2r-mqww-4r35
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness: CWE-400
Updated: 2026-11-02

NVD 7.5

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

Record: CVE-2026-52022
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness: CWE-400
Updated: 2026-11-02

OSV 7.5

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

Record: CVE-2026-52022
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated: 2026-11-02

OSVDEBIAN-CVE-2026-52022 7.5

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

Record: DEBIAN-CVE-2026-52022
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated: 2026-11-02

OSVUBUNTU-CVE-2026-52022 7.5

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

Record: UBUNTU-CVE-2026-52022
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated: 2026-11-02

Affected products

kamailio

Affected packages

Affected packages
Package	Affected	Fixed
`kamailio` Debian:12	All versions, plus listed versions 5.6.3-25.6.4-15.7.0-15.7.2-15.7.3-1 Show 23 moreShow less 5.7.4-15.8.2-25.8.2-35.8.2-45.8.3-15.8.4-15.8.5-16.0.0-16.0.1-16.0.2-16.0.2-26.0.2-36.0.3-16.0.3-26.0.3-36.0.4-16.0.5-16.1.1-26.1.1-2.16.1.2-16.1.3-16.1.3-26.1.4-1	None known
`kamailio` Debian:13	before 6.0.1-1+deb13u2, plus listed versions 6.0.1-16.0.1-1+deb13u1	6.0.1-1+deb13u2
`kamailio` Debian:14	before 6.1.4-1, plus listed versions 6.0.1-16.0.2-16.0.2-26.0.2-36.0.3-1 Show 9 moreShow less 6.0.3-26.0.3-36.0.4-16.0.5-16.1.1-26.1.1-2.16.1.2-16.1.3-16.1.3-2	6.1.4-1
`kamailio` Ubuntu:Pro:16.04:LTS	All versions, plus listed versions 4.3.1-2ubuntu14.3.4-1.1ubuntu14.3.4-1.1ubuntu24.3.4-1.1ubuntu2.14.3.4-1.1ubuntu2.1+esm14.3.4-1.1ubuntu2.1+esm2	None known
`kamailio` Ubuntu:Pro:18.04:LTS	All versions, plus listed versions 4.4.2-3ubuntu55.0.4-1ubuntu15.1.1-1ubuntu15.1.1-1ubuntu45.1.2-1ubuntu15.1.2-1ubuntu25.1.2-1ubuntu2+esm15.1.2-1ubuntu2+esm2	None known
`kamailio` Ubuntu:Pro:20.04:LTS	All versions, plus listed versions 5.2.3-1build35.2.3-1build45.3.0-25.3.1-15.3.2-1build1 Show 4 moreShow less 5.3.2-1build25.3.2-1build35.3.2-1ubuntu0.1~esm15.3.2-1ubuntu0.1~esm2	None known
`kamailio` Ubuntu:22.04:LTS	All versions, plus listed versions 5.4.4-1build15.4.4-1ubuntu15.4.4-1ubuntu25.5.4-1	None known
`kamailio` Ubuntu:24.04:LTS	All versions, plus listed versions 5.7.0-1build15.7.2-1build15.7.3-15.7.4-15.7.4-1build15.7.4-1build55.7.4-1build7	None known
`kamailio` Ubuntu:26.10	All versions, plus listed versions 6.0.5-1ubuntu16.1.2-1ubuntu26.1.2-1ubuntu36.1.2-1ubuntu4	None known
`kamailio` Ubuntu:26.04:LTS	All versions, plus listed versions 6.0.2-26.0.5-16.0.5-1build16.0.5-1ubuntu1	None known

History

History
Recorded	Changed	Sources
Nov 2, 2026	first indexed	CVE List, EUVD, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2026-52022 is a high vulnerability (CVSS 7.5) in Kamailio, published September 1, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.58%, the 47th percentile. Fixed in kamailio 6.0.1-1+deb13u2.

Attack profile

How easy it is to exploit

What an attacker can affect

Exploit likelihood

What each source reports

Affected products

Affected packages

History

In short

References