CVE-2026-75439

An issue in Free5GC v.4.2.2 allows a remote attacker to cause a denial of service via the UPF...

7.5 High

An issue in Free5GC v.4.2.2 allows a remote attacker to cause a denial of service via the UPF component

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

0.76%Up 0.5 points since Sep 5, 2026

What each source reports

CVE List Score used7.5

An issue in Free5GC v.4.2.2 allows a remote attacker to cause a denial of service via the UPF component

Record: CVE-2026-75439
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-476
Updated: 2026-11-02

EUVDEUVD-2026-717717.5

An issue in Free5GC v.4.2.2 allows a remote attacker to cause a denial of service via the UPF component

Record: EUVD-2026-71771
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-5whm-8jh8-99wq7.5

An issue in Free5GC v.4.2.2 allows a remote attacker to cause a denial of service via the UPF...

An issue in Free5GC v.4.2.2 allows a remote attacker to cause a denial of service via the UPF component

Record: GHSA-5whm-8jh8-99wq
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-476
Updated: 2026-11-02

NVD7.5

An issue in Free5GC v.4.2.2 allows a remote attacker to cause a denial of service via the UPF component

Record: CVE-2026-75439
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-476
Updated: 2026-11-02

History

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

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

In short

CVE-2026-75439 is a high vulnerability (CVSS 7.5), published September 4, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.76%, the 55th percentile. No source names a fixed version.

Attack profile

How easy it is to exploit

What an attacker can affect

Exploit likelihood

What each source reports

History

In short

References