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CVE-2026-1522

5.3 · MEDIUM

A weakness has been identified in Open5GS up to 2.7.6.

Published Jan 28, 2026CWE-404EPSS 0.74%

Overview

CVE-2026-1522 is a medium-severity vulnerability. It was published on January 28, 2026 and has a CVSS 3.1 base score of 5.3 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 5.3, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical 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.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHubgithub.com/open5gs/open5gs/GitHubgithub.com/open5gs/open5gs/commit/b19cf6aGitHubgithub.com/open5gs/open5gs/issues/4266GitHubgithub.com/open5gs/open5gs/issues/4266#event-21968568116GitHubgithub.com/open5gs/open5gs/issues/4266#issue-3794991595Refvuldb.com/?ctiid.343193Refvuldb.com/?id.343193Refvuldb.com/?submit.738371

How CyberStrike helps

Frequently asked questions

What is CVE-2026-1522?

CVE-2026-1522 is a medium-severity vulnerability. It was published on January 28, 2026 and has a CVSS 3.1 base score of 5.3 (MEDIUM).

How severe is CVE-2026-1522?

This vulnerability has a CVSS 3.1 base score of 5.3, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2026-1522?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-1522?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-1522 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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