Unrated severityOSV Advisory· Published Jan 28, 2026· Updated Feb 23, 2026
Open5GS SGWC s5c-handler.c sgwc_s5c_handle_modify_bearer_response denial of service
CVE-2026-1522
Description
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.
Affected products
1Patches
0No patches discovered yet.
Vulnerability mechanics
AI mechanics synthesis has not run for this CVE yet.
References
7- github.com/open5gs/open5gs/commit/b19cf6amitrepatch
- github.com/open5gs/open5gs/issues/4266mitreexploitissue-tracking
- vuldb.commitrethird-party-advisory
- github.com/open5gs/open5gs/issues/4266mitreissue-tracking
- github.com/open5gs/open5gs/issues/4266mitreissue-tracking
- vuldb.commitresignaturepermissions-required
- vuldb.commitrevdb-entrytechnical-description
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