CVE-2026-1521

Medium

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.

SeverityMedium

CVSS5.3

Exploit probability—

ProductOpen5gs

PublishedJan 28, 2026

First seenJan 28, 2026

Weakness typeCWE-404CWE-404

How to fix

Patches

github.com/open5gs/open5gs/commit/69b53add90a9479d7960b822fc60601d659c328b

Affected products

Product	Affected versions	Fixed in
open5gs open5gs	v ≤ 2.7.6	—

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