CVE-2026-1522 MEDIUM

CVE-2026-1522: Open5GS SGWC s5c-handler.c sgwc_s5c_handle_modify_bearer_response denial of service

Vendor N/A
Product Open5GS
Weakness CWE-404
Published January 28, 2026
Last update February 23, 2026
View on NVD All CVEs

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 vulnerability affects the function sgwc_s5c_handle_modify_bearer_response of the file src/sgwc/s5c-handler.c of the component SGWC. Executing a manipulation can lead to denial of service. The attack can be launched remotely. The exploit has been made available to the public and could be used for attacks. This patch is called b19cf6a. Applying a patch is advised to resolve this issue. The issue report is flagged as already-fixed.

Key dates

02Disclosure timeline

January 28, 2026 CVE published
February 23, 2026 Record updated