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CVE-2026-4988

3.7 · LOW

A security flaw has been discovered in Open5GS 2.7.6.

Published Mar 27, 2026CWE-404EPSS 0.73%

Overview

CVE-2026-4988 is a low-severity vulnerability. It was published on March 27, 2026 and has a CVSS 3.1 base score of 3.7 (LOW).

This vulnerability has a CVSS 3.1 base score of 3.7, rated LOW. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

A security flaw has been discovered in Open5GS 2.7.6. This issue affects the function smf_gx_cca_cb/smf_gy_cca_cb/smf_s6b of the component CCA Message Handler. The manipulation results in denial of service. The attack may be launched remotely. Attacks of this nature are highly complex. The exploitability is assessed as difficult. The exploit has been released to the public and may be used for attacks.

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/issues/4342GitHubgithub.com/open5gs/open5gs/issues/4342#issue-4021772232Refvuldb.com/?ctiid.353875Refvuldb.com/?id.353875Refvuldb.com/?submit.771349

How CyberStrike helps

Frequently asked questions

What is CVE-2026-4988?

CVE-2026-4988 is a low-severity vulnerability. It was published on March 27, 2026 and has a CVSS 3.1 base score of 3.7 (LOW).

How severe is CVE-2026-4988?

This vulnerability has a CVSS 3.1 base score of 3.7, rated LOW. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2026-4988?

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-2026-4988?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-4988 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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