CVE-2026-28421CWE-122CWE-20

Vim has a heap-buffer-overflow and a segmentation fault

Medium · published February 27, 2026

CVSS v3.1
5.3
EPSS
0%
Percentile
9.1
In the wild
Unconfirmed
What it is

Vim is an open source, command line text editor. Versions prior to 9.2.0077 have a heap-buffer-overflow and a segmentation fault (SEGV) exist in Vim's swap file recovery logic. Both are caused by unvalidated fields read from crafted pointer blocks within a swap file. Version 9.2.0077 fixes the issue.

The record
Technical detail
CVSS v3.1
5.3 · MEDIUM
Vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L
CVSS v4.0
Not supplied
EPSS
0.00199 · 9.1th percentile
Weaknesses
CWE-122 · Heap-based Buffer Overflow; CWE-20 · Improper Input Validation
Published
2026-02-27T22:06Z
EPSS history
Timeline
  • 27 FEB 22:06Z
    Vim has a heap-buffer-overflow and a segmentation fault
    cvelistv5