Out-of-bounds Read in Vim
CVE-2026-52859
Vim is an open source, command line text editor. Prior to version 9.2.0565, the update_snapshot() function in src/terminal.c copies the visible terminal screen into the scrollback buffer when a snapshot is taken. For each screen cell it wa…
Vulnerability class: Buffer Overflow
EPSS: 0.003 (22.5th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H.
Affected products
- Vim — versions < 9.2.0565
Weakness classification (CWE)
References
- security-advisories@github.com (Patch, x_refsource_MISC)
- security-advisories@github.com (x_refsource_MISC, Release Notes)
- security-advisories@github.com (x_refsource_CONFIRM, Vendor Advisory)
Frequently asked questions
- What is CVE-2026-52859?
- CVE-2026-52859 is a high-severity vulnerability in Vim, classified under Out-of-bounds Read. CVSS score: 8.2/10. Published 2026-06-11.
- How severe is CVE-2026-52859?
- High severity. CVSS v3 base score is 8.2 out of 10.