File overwrite via archive-member argument injection
Published Mar 13, 2025 · Updated May 2, 2025
Argument injection in Vim zip.vim before 9.1.1198 allows context-dependent attackers to overwrite files via a crafted ZIP member name. The zip#Extract() function passes a member name beginning with a hyphen to unzip -o without neutralizing it, so -d/tmp is parsed as an output-directory option and the entire archive is extracted there. A user must open the archive and press x on the unusual member; files writable by the Vim process can then be overwritten.
Summary
What happened
Argument injection in Vim zip.vim before 9.1.1198 allows context-dependent attackers to overwrite files via a crafted ZIP member name. The zip#Extract() function passes a member name beginning with a hyphen to unzip -o without neutralizing it, so -d/tmp is parsed as an output-directory option and the entire archive is extracted there. A user must open the archive and press x on the unusual member; files writable by the Vim process can then be overwritten.
The record
- CVE
- CVE-2025-29768
- Published
- Mar 13, 2025
- Updated
- May 2, 2025
- Vendor
- Vim
- Product
- Vim
- Classifications
- CWE-88, T1204.002
- Attack vector
- local
- Privileges
- unauthenticated
Timeline
How it unfolded
- Mar 13, 2025CVE publishedPublication date reported by the CVE source.
- May 2, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=< 9.1.1198
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
- Upstream poc.zip regression sampleproof of concept · validated
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Technologies
Your stack
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Your stack
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