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CVE-2026-5122

3.7 · LOW

A security flaw has been discovered in osrg GoBGP up to 4.3.0.

Published Mar 30, 2026CWE-266EPSS 0.47%

Overview

CVE-2026-5122 is a low-severity vulnerability. It was published on March 30, 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 osrg GoBGP up to 4.3.0. This affects the function DecodeFromBytes of the file pkg/packet/bgp/bgp.go of the component BGP OPEN Message Handler. Performing a manipulation of the argument domainNameLen results in improper access controls. The attack may be initiated remotely. A high degree of complexity is needed for the attack. The exploitability is reported as difficult. The patch is named 2b09db390a3d455808363c53e409afe6b1b86d2d. It is suggested to install a patch to address this issue.

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/osrg/gobgp/GitHubgithub.com/osrg/gobgp/commit/2b09db390a3d455808363c53e409afe6b1b86d2dGitHubgithub.com/osrg/gobgp/pull/3343Refvuldb.com/submit/780124Refvuldb.com/vuln/354154Refvuldb.com/vuln/354154/cti

How CyberStrike helps

Frequently asked questions

What is CVE-2026-5122?

CVE-2026-5122 is a low-severity vulnerability. It was published on March 30, 2026 and has a CVSS 3.1 base score of 3.7 (LOW).

How severe is CVE-2026-5122?

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-2026-5122?

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-2026-5122?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-5122 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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