CVE-2026-1521CWE-404

Open5GS SGWC s5c-handler.c denial of service

Medium · published January 28, 2026

CVSS v4.0
6.9
EPSS
1%
Percentile
47.7
In the wild
Unconfirmed
What it is

A security flaw has been discovered in Open5GS up to 2.7.6. This affects the function sgwc_s5c_handle_bearer_resource_failure_indication of the file src/sgwc/s5c-handler.c of the component SGWC. Performing a manipulation results in denial of service. The attack can be initiated remotely. The exploit has been released to the public and may be used for attacks. The patch is named 69b53add90a9479d7960b822fc60601d659c328b. It is recommended to apply a patch to fix this issue.

The record
Technical detail
CVSS v4.0
6.9 · MEDIUM
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
EPSS
0.00594 · 47.7th percentile
Weakness
CWE-404 · Improper Resource Shutdown or Release
Published
2026-01-28T14:32Z
EPSS history
Timeline
  • 28 JAN 14:32Z
    Open5GS SGWC s5c-handler.c denial of service
    cvelistv5