Vulnerability Description
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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Open5Gs | Open5Gs | <= 2.7.6 |
Related Weaknesses (CWE)
References
- https://github.com/open5gs/open5gs/
- https://github.com/open5gs/open5gs/commit/69b53add90a9479d7960b822fc60601d659c32Patch
- https://github.com/open5gs/open5gs/issues/4268ExploitIssue TrackingVendor Advisory
- https://github.com/open5gs/open5gs/issues/4268#event-21989483261ExploitIssue TrackingVendor Advisory
- https://github.com/open5gs/open5gs/issues/4268#issue-3795012861ExploitIssue TrackingVendor Advisory
- https://vuldb.com/?ctiid.343192Permissions RequiredVDB Entry
- https://vuldb.com/?id.343192Third Party AdvisoryVDB Entry
- https://vuldb.com/?submit.738370ExploitThird Party AdvisoryVDB Entry
FAQ
What is CVE-2026-1521?
CVE-2026-1521 is a vulnerability with a CVSS score of 5.3 (MEDIUM). 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. Perfo...
How severe is CVE-2026-1521?
CVE-2026-1521 has been rated MEDIUM with a CVSS base score of 5.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-1521?
Check the references section above for vendor advisories and patch information. Affected products include: Open5Gs Open5Gs.