CVE-2026-28420

MEDIUM EPSS 7.4%
Published Feb 27, 20264mo ago · Modified Mar 4, 20263mo ago
4.4 CVSS 3.1
Medium
Find Similar
Published Feb 27, 2026 4mo ago
Last Modified Mar 4, 2026 3mo ago

Description

Vim is an open source, command line text editor. Prior to version 9.2.0076, a heap-based buffer overflow WRITE and an out-of-bounds READ exist in Vim's terminal emulator when processing maximum combining characters from Unicode supplementary planes. Version 9.2.0076 fixes the issue.

CVSS Details

Base Score
4.4
Exploitability
1.8
Impact
2.5
Vector string
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L
Attack Vector Local
Attack Complexity Low
Privileges Required None
User Interaction Required
Scope Unchanged
Confidentiality None
Integrity Low
Availability Low

Threat Intelligence

EPSS Exploit Probability
7.4% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 2

CWE-122
CWE-125 Out-of-bounds Read Memory Safety

Affected Products 1

VendorProductVersionRange
vimvim* <9.2.0076

References 4

  • openwall.com http://www.openwall.com/lists/oss-security/2026/02/27/9
    Mailing ListPatchThird Party Advisory
  • github.com https://github.com/vim/vim/commit/bb6de2105b160e729c34063
    Patch
  • github.com https://github.com/vim/vim/releases/tag/v9.2.0076
    Product
  • github.com https://github.com/vim/vim/security/advisories/GHSA-rvj2-jrf9-2phg
    PatchVendor Advisory

Remediation

  • openwall.com http://www.openwall.com/lists/oss-security/2026/02/27/9
    Mailing ListPatchThird Party Advisory
  • github.com https://github.com/vim/vim/commit/bb6de2105b160e729c34063
    Patch
  • github.com https://github.com/vim/vim/security/advisories/GHSA-rvj2-jrf9-2phg
    PatchVendor Advisory