CVE-2026-1587: Open5GS SGWC s11-handler.c sgwc_s11_handle_modify_bearer_request denial of service
A vulnerability has been found in Open5GS up to 2.7.6. The affected element is the function sgwcs11handlemodifybearerrequest of the file /sgwc/s11-handler.c of the component SGWC. The manipulation leads to denial of service. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used. Applying a patch is the recommended action to fix this issue. The issue report is flagged as already-fixed.
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2026-1587?
CVE-2026-1587 has a medium severity rating due to its potential to cause a denial of service.
How do I fix CVE-2026-1587?
To fix CVE-2026-1587, upgrade Open5GS to version 2.7.7 or later.
What component is affected by CVE-2026-1587?
CVE-2026-1587 affects the SGWC component, specifically the sgwc_s11_handle_modify_bearer_request function.
What types of attacks can CVE-2026-1587 facilitate?
CVE-2026-1587 can facilitate denial of service attacks against the Open5GS SGWC.
Is my version of Open5GS vulnerable to CVE-2026-1587?
Versions of Open5GS up to and including 2.7.6 are vulnerable to CVE-2026-1587.