What’s Vulnerable › Vulnerabilities

CVE-2026-7779: Open5GS authentication-subscription Endpoint nudr-handler.c udm_nudr_dr_handle_subscription_authentication denial of service

• Severity: medium (CVSS 4.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-05-04 · updated 2026-06-17
• Weakness: CWE-404

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.

Affected products

• Open5GS: 2.7.0, 2.7.1, 2.7.2, 2.7.3, 2.7.4, 2.7.5 (+2)

References

• https://github.com/open5gs/open5gs/
• https://github.com/open5gs/open5gs/issues/4418
• https://vuldb.com/submit/806249
• https://vuldb.com/vuln/360976
• https://vuldb.com/vuln/360976/cti

Get alerted when CVE-2026-7779 or the next vulnerability affects your stack