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CVE-2026-40851

8.4 · HIGH

A local attacker can perform a confusion attack on the cfgparser via a specially crafted file on an USB stick leading to code execution.

Published May 27, 2026CWE-1287EPSS 0.18%

Overview

CVE-2026-40851 is a high-severity vulnerability. It was published on May 27, 2026 and has a CVSS 3.1 base score of 8.4 (HIGH).

This vulnerability has a CVSS 3.1 base score of 8.4, rated HIGH. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

Technical description

A local attacker can perform a confusion attack on the cfgparser via a specially crafted file on an USB stick leading to code execution. This can result in a total loss of confidentiality, integrity and availability.

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

Refwww.certvde.com/en/advisories/VDE-2026-054/

How CyberStrike helps

Frequently asked questions

What is CVE-2026-40851?

CVE-2026-40851 is a high-severity vulnerability. It was published on May 27, 2026 and has a CVSS 3.1 base score of 8.4 (HIGH).

How severe is CVE-2026-40851?

This vulnerability has a CVSS 3.1 base score of 8.4, rated HIGH. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2026-40851?

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-2026-40851?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-40851 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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