CVE-2026-7707

A vulnerability was found in Open5GS up to 2.7.7. Impacted is the function udr_nudr_dr_handle_subscription_context of the file /src/udr/nudr-handler.c of the component UDR. The manipulation of the argument pei results in denial of service. The attack can be launched remotely. The exploit has been made public and could be used. The project was informed of the problem early through an issue report but has not responded yet.

CVSS v3 4.3 MEDIUM
CVSS v2.0 4.0 MEDIUM

4.3^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact LOW

Scope UNCHANGED

4.0^/10

CVSS v2.0 : MEDIUM

Vector : AV:N/AC:L/Au:S/C:N/I:N/A:P

Exploitability : 8.0 / Impact : 2.9

Access Vector NETWORK

Access Complexity LOW

Authentication SINGLE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

References

Link	Resource
https://github.com/open5gs/open5gs/
https://github.com/open5gs/open5gs/issues/4410
https://github.com/open5gs/open5gs/issues/4411
https://vuldb.com/submit/805699
https://vuldb.com/submit/805700
https://vuldb.com/vuln/360883
https://vuldb.com/vuln/360883/cti
https://github.com/open5gs/open5gs/issues/4410
https://vuldb.com/submit/805699
https://vuldb.com/submit/805700

Configurations

No configuration.

History

05 May 2026, 21:16

Type	Values Removed	Values Added
References	~~() https://github.com/open5gs/open5gs/issues/4410 -~~	() https://github.com/open5gs/open5gs/issues/4410 -
References	~~() https://vuldb.com/submit/805699 -~~	() https://vuldb.com/submit/805699 -
References	~~() https://vuldb.com/submit/805700 -~~	() https://vuldb.com/submit/805700 -

03 May 2026, 23:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-05-03 23:16

Updated : 2026-05-05 21:16

NVD link : CVE-2026-7707

Mitre link : CVE-2026-7707

CVE.ORG link : CVE-2026-7707

JSON object : View

Products Affected

No product.

CWE

CWE-404

Improper Resource Shutdown or Release

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