CVE-2026-7779
LOW EPSS 27.7%
Published May 4, 20261mo ago · Modified Jun 17, 20261w ago
2.1 CVSS 4.0
Published May 4, 2026 1mo ago
Last Modified Jun 17, 2026 1w ago
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.
CVSS Details
Base Score
Exploitability
Impact
Vector string
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Attack Vector Network
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope X
Threat Intelligence
EPSS Exploit Probability
27.7% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available
Weaknesses 1
CWE-404
References 5
- github.com https://github.com/open5gs/open5gs/
- github.com https://github.com/open5gs/open5gs/issues/4418
- vuldb.com https://vuldb.com/submit/806249
- vuldb.com https://vuldb.com/vuln/360976
- vuldb.com https://vuldb.com/vuln/360976/cti
Remediation
No remediation data recorded yet
Check vendor advisories and the NVD entry for patch availability.