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CVE-2025-55157

8.8 · HIGH

Vim is an open source, command line text editor.

Published Aug 11, 2025CWE-416EPSS 0.36%

Overview

CVE-2025-55157 is a high-severity vulnerability. It was published on August 11, 2025 and has a CVSS 3.1 base score of 8.8 (HIGH).

This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

Vim is an open source, command line text editor. In versions from 9.1.1231 to before 9.1.1400, When processing nested tuples in Vim script, an error during evaluation can trigger a use-after-free in Vim’s internal tuple reference management. Specifically, the tuple_unref() function may access already freed memory due to improper lifetime handling, leading to memory corruption. The exploit requires direct user interaction, as the script must be explicitly executed within Vim. This issue has been patched in version 9.1.1400.

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/1307743697bbc46e1518abfea7f89caa95bcaf97GitHubgithub.com/vim/vim/releases/tag/v9.1.1400GitHubgithub.com/vim/vim/security/advisories/GHSA-3r4f-mm4w-wgg6

How CyberStrike helps

Frequently asked questions

What is CVE-2025-55157?

CVE-2025-55157 is a high-severity vulnerability. It was published on August 11, 2025 and has a CVSS 3.1 base score of 8.8 (HIGH).

How severe is CVE-2025-55157?

This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2025-55157?

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-2025-55157?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2025-55157 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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