Is CVE-2026-7779 actively exploited?

No active exploitation of CVE-2026-7779 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-7779 be exploited remotely?

Yes. CVE-2026-7779 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-7779?

CVE-2026-7779 has a CVSS score of 4.3 (MEDIUM).

HOME VULNERABILITIESCVE-2026-7779

MEDIUM

CVE-2026-7779

CWE-404Published: May 4, 2026· Updated: May 5, 2026

4.3

CVSS v3.1

EPSS:0.11%probability of exploitation in 30 daysPercentile:28.1th

Official Description

A security flaw has been discovered in Open5GS up to 2.7.7. Affected is the function udm_nudr_dr_handle_subscription_authentication of the file /src/udm/nudr-handler.c of the component authentication-subscription Endpoint. Performing a manipulation results in denial of service. Remote exploitation of the attack is possible. The exploit has been released to the public and may be used for attacks. The project was informed of the problem early through an issue report but has not responded yet.

NVD Source

Technical Analysis

CVE-2026-7779 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.