CVE-2025-11001
Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.
NVD · unedited7-Zip ZIP File Parsing Directory Traversal Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of 7-Zip. Interaction with this product is required to exploit this vulnerability but attack vectors may vary depending on the implementation. The specific flaw exists within the handling of symbolic links in ZIP files. Crafted data in a ZIP file can cause the process to traverse to unintended directories. An attacker can leverage this vulnerability to execute code in the context of a service account. Was ZDI-CAN-26753.
Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.
dbcve analysis · moderate confidence7-Zip contains a directory traversal vulnerability in its ZIP file parsing logic, specifically in how it handles symbolic links within ZIP archives. When a specially crafted ZIP file containing malicious symbolic link entries is opened, the application can be tricked into accessing files outside the intended extraction directory, potentially allowing arbitrary file write operations that can lead to remote code execution in the context of the user or service account running 7-Zip.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.
NVD · CPE data= 24.09CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.
From the vector- Attack vector
- Local
- Complexity
- Low
- Privileges
- None
- User interaction
- Required
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.
dbcve checksWork through these to decide whether this CVE applies to you.
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Verify 7-Zip installation versionCheck the installed version by right-clicking 7z.exe (typically in C:\Program Files\7-Zip\ or C:\Program Files (x86)\7-Zip\), selecting Properties, and viewing the Details tab. Alternatively, run '7z' from command line and note the version displayed, or check Help > About in the 7-Zip File Manager GUI.Affected if The installed version is exactly 24.09 (the only version listed as affected)
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Confirm 7-Zip executable locationLocate the 7-Zip executable (7z.exe) on the system using File Explorer or the command 'where 7z.exe' to ensure you are checking the correct installation.Affected if The located executable corresponds to version 24.09
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Identify extraction-related configuration7-Zip handles symbolic links during extraction based on the 'Extract' operation. No specific user-configurable setting exists to disable symbolic link processing in the standard extraction dialog.Affected if The vulnerability is present in the version itself when extracting any ZIP containing symbolic links, regardless of configuration
A system is affected only if 7-Zip version 24.09 is installed and the user extracts a specially crafted ZIP file containing malicious symbolic link entries.
Generated from the published advisory. Verify against your own configuration.
Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.
From vendor dataUpdate 7-Zip to the latest version that addresses this vulnerability. Until a patch is available, exercise caution when opening ZIP files from untrusted sources, as user interaction (opening a malicious ZIP) is required to trigger the vulnerability.
- Consultation2.0 h
- Implementation4.0 h
- Testing3.0 h
- Review / QA1.0 h
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Free · runs locallyCheck whether your project pulls in CVE-2025-11001 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2025-11001 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- Verified mitigations, workarounds, and config changes
- Version or environment caveats, and links to real fixes
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