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CVE-2025-66476

7.8 · HIGH

Vim is an open source, command line text editor.

Published Dec 2, 2025CWE-427EPSS 0.45%

Overview

CVE-2025-66476 is a high-severity vulnerability. It was published on December 2, 2025 and has a CVSS 3.1 base score of 7.8 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

Technical description

Vim is an open source, command line text editor. Prior to version 9.1.1947, an uncontrolled search path vulnerability on Windows allows Vim to execute malicious executables placed in the current working directory for the current edited file. On Windows, when using cmd.exe as a shell, Vim resolves external commands by searching the current working directory before system paths. When Vim invokes tools such as findstr for :grep, external commands or filters via :!, or compiler/:make commands, it may inadvertently run a malicious executable present in the same directory as the file being edited. The issue affects Vim for Windows prior to version 9.1.1947.

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/vim/vim/commit/083ec6d9a3b7b09006e0ce69ac802597d25GitHubgithub.com/vim/vim/releases/tag/v9.1.1947GitHubgithub.com/vim/vim/security/advisories/GHSA-g77q-xrww-p834Refwww.openwall.com/lists/oss-security/2025/12/02/5

How CyberStrike helps

Frequently asked questions

What is CVE-2025-66476?

CVE-2025-66476 is a high-severity vulnerability. It was published on December 2, 2025 and has a CVSS 3.1 base score of 7.8 (HIGH).

How severe is CVE-2025-66476?

This vulnerability has a CVSS 3.1 base score of 7.8, 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-2025-66476?

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-2025-66476?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2025-66476 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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