CVE-2025-55188: 7-Zip before 25.01 does not always properly handle symbolic links during extraction
Source GCVE Database
Not known to be exploited · CVSS 3.6 Low.
Data as of 4 Nov 2026, 17:56 UTC
Thin evidence
One scorer or none| CNA (mitre) | CVSS 3.1 | 3.6 |
|---|
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:N/I:L/A:NExploitation evidence
Disclosed: evidence found.
CVE published 8 Aug 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 4 Nov 2026.
What to do
AI-suggested
Users should upgrade to 7-Zip version 25.01 or later once available to address this issue. Until then, exercise caution when extracting archives from untrusted sources, especially those containing symbolic links. Monitor vendor advisories for updates on remediation.
Description
A vulnerability in 7-Zip before version 25.01 causes improper handling of symbolic links during extraction. This flaw may lead to limited integrity issues but does not affect confidentiality or availability. The vulnerability has a low CVSS score of 2.7 and requires local attack vector with high attack complexity and user interaction.
References
- nvd.nist.gov/vuln/detail/CVE-2025-55188 (opens in a new tab)
- github.com/ip7z/7zip/compare/25.00...25.01 (opens in a new tab)
- github.com/ip7z/7zip/releases/tag/25.01 (opens in a new tab)
- github.com/lunbun/CVE-2025-55188 (opens in a new tab)
- lunbun.dev/blog/cve-2025-55188 (opens in a new tab)
- sourceforge.net/p/sevenzip/discussion/45797/thread/da14cd780b (opens in a new tab)
- openwall.com/lists/oss-security/2025/08/09/1 (opens in a new tab)
- vicarius.io/vsociety/posts/cve-2025-55188-detect-7-zip-vulnerable-version (opens in a new tab)
- vicarius.io/vsociety/posts/cve-2025-55188-mitigate-7-zip-vulnerability (opens in a new tab)
- youtu.be/sWT6M1cfnwM (opens in a new tab)
- openwall.com/lists/oss-security/2025/08/09/1 (opens in a new tab)
- openwall.com/lists/oss-security/2025/08/10/1 (opens in a new tab)
- openwall.com/lists/oss-security/2025/08/13/1 (opens in a new tab)
- openwall.com/lists/oss-security/2025/10/12/2 (opens in a new tab)
- openwall.com/lists/oss-security/2025/10/16/7 (opens in a new tab)