CVE-2026-7781
Last modified
CVE-2026-7781 is a medium-severity vulnerability rated 4.3/10 on the CVSS scale. A security vulnerability has been detected in Open5GS up to 2.7.7. Affected by this issue is the function udm_nudm_uecm_handle_amf_registration_update of the file /src/udm/nudm-handler.c of the component amf-3gpp-access Endpoint. EPSS estimates a 0.27% chance of exploitation in the next 30 days.
Description
A security vulnerability has been detected in Open5GS up to 2.7.7. Affected by this issue is the function udm_nudm_uecm_handle_amf_registration_update of the file /src/udm/nudm-handler.c of the component amf-3gpp-access Endpoint. The manipulation leads to denial of service. The attack is possible to be carried out remotely. The exploit has been disclosed publicly and may be used. The project was informed of the problem early through an issue report but has not responded yet.
Metrics
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
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
Weakness Enumeration
References
Timeline
- Published
- Last Modified
- Status
- Deferred
Frequently Asked Questions
What is CVE-2026-7781?
How severe is CVE-2026-7781?
How do I fix CVE-2026-7781?
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2026
- CVE-2026-7774tarfile.data_filter could be bypassed using crafted link ent…6.9
- CVE-2026-7775IBM Sterling B2B Integrator 6.2.0.0 through 6.2.0.6, 6.2.1.0…4.8
- CVE-2026-7776Boundary Community Edition and Boundary Enterprise (“Boundar…7.5
- CVE-2026-7778An issue that could allow a dashboard configuration to be vi…5
- CVE-2026-7779A security flaw has been discovered in Open5GS up to 2.7.7. …4.3
- CVE-2026-7780A weakness has been identified in Open5GS up to 2.7.7. Affec…4.3
- CVE-2026-7782A vulnerability was detected in CodeCanyon Perfex CRM up to …6.3
- CVE-2026-7783A flaw has been found in CodeCanyon Perfex CRM up to 3.4.1. …6.3
- CVE-2026-7784A vulnerability has been found in RTGS2017 NagaAgent up to 5…7.3
- CVE-2026-7785A security flaw has been discovered in A-G-U-P-T-A wireshark…7.3
- CVE-2026-7786Jinan USR IOT Technology Limited (PUSR) USR-W610 RS232/485 t…9.8
- CVE-2026-7787IBM Langflow OSS 1.0.0 through 1.9.1 could allow an authenti…8.1
Are you affected by CVE-2026-7781?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST