Double Free in Vim
CVE-2025-55158
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…
Vulnerability class: Double Free
EPSS: 0.003 (24.8th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
Affected products
- Vim — versions >= 9.1.1231, < 9.1.1406
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM, Vendor Advisory)
- security-advisories@github.com (Patch, x_refsource_MISC)
- security-advisories@github.com (Patch, x_refsource_MISC)
Frequently asked questions
- What is CVE-2025-55158?
- CVE-2025-55158 is a high-severity vulnerability in Vim, classified under Double Free. CVSS score: 8.8/10. Published 2025-08-11.
- How severe is CVE-2025-55158?
- High severity. CVSS v3 base score is 8.8 out of 10.