CVE-2026-2521 MEDIUM

CVE-2026-2521: Open5GS SGW-C sgwc_s5c_handle_create_session_response memory corruption

Vendor N/A
Product Open5GS
Weakness CWE-119
Published February 15, 2026
Last update February 23, 2026

CVSS base score

6.9/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality
Integrity

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P

What the vulnerability does

01Description

A weakness has been identified in Open5GS up to 2.7.6. This issue affects the function sgwc_s5c_handle_create_session_response of the component SGW-C. Executing a manipulation can lead to memory corruption. The attack may be performed from remote. The exploit has been made available to the public and could be used for attacks. The project was informed of the problem early through an issue report but has not responded yet.

Key dates

02Disclosure timeline

February 15, 2026 CVE published
February 23, 2026 Record updated