CVE-2025-55158
highpriority · track · 35EPSS 0.004 · 30 %ileDEEURUUSEPSS · scored 2026-10-27
Vim is an open source, command line text editor. In versions from 9.1.1231 to before 9.1.1406, when processing nested tuples during Vim9 script import operations, an error during evaluation can trigger a double-free in Vim’s internal typed value (typval_T) management. Specifically, the clear_tv() function may attempt to free memory that has already been deallocated, due to improper lifetime handling in the handle_import / ex_import code paths. The vulnerability can only be triggered if a user explicitly opens and executes a specially crafted Vim script. This issue has been patched in version 9.1.1406.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 4.6–8.8
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (30)
Products and version ranges known to be affected.
advisories (2)
Vendor and ecosystem advisories describing this.
- WID-SEC-W-2025-1753vim: Mehrere Schwachstellen ermöglichen Denial of ServiceDeutsch2025-08-10csaf · cert_bundDE
Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in vim ausnutzen, um einen Denial of Service Angriff durchzuführen.
- WID-SEC-W-2026-0349Dell Avamar und NetWorker: Mehrere SchwachstellenDeutsch2026-02-09csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in Dell Avamar und Dell NetWorker ausnutzen, um Angriffe zu starten, die die Integrität, Vertraulichkeit und Verfügbarkeit von Systemen beeinträchtigen.
also known as (3)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (11)
External citations — patches, advisories, analysis.
- https://github.com/vim/vim/commit/9772025d24e939fd84b85748ce35c26874c05775cnnvd
- https://github.com/vim/vim/releases/tag/v9.1.1406cnnvd
- https://github.com/vim/vim/security/advisories/GHSA-5fg8-wvx3-583xcnnvd
- https://github.com/vim/vim/tagsPatchcnnvd
- https://vigilance.fr/vulnerability/Vim-use-after-free-via-clear-tv-48270cnnvd
- https://github.com/vim/vim/commit/9772025d24e939fd84b85748ce35c26874c05775enisa_euvd
- https://github.com/vim/vim/releases/tag/v9.1.1406enisa_euvd
- https://github.com/vim/vim/security/advisories/GHSA-5fg8-wvx3-583xenisa_euvd
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