Home/CVE/Vim is an open source, command line text editor. Prior to version 9.2.0076, a heap-based buffer overflow WRITE and an ou
CVE

CVE-2026-28420

Vim is an open source, command line text editor. Prior to version 9.2.0076, a heap-based buffer overflow WRITE and an ou

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.

MEDIUM · CVSS 4.4 EPSS 6e-05
Monitor
  • No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-122Heap-based Buffer Overflow
CWE-125Out-of-bounds Read
▤

Affected Products & Versions

1
vim< 9.2.0076
▣

Scoring & Timeline

4.4
MEDIUM · CVSS v3.1 · security-advisories@github.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD27 Feb 2026 · 10:16 PM
CVSS VectorCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
no
Technical impact
partial
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
⚑

Vendor Advisories

5
suse-csafSUSE-SU-2026:1051-1
suse-csafSUSE-SU-2026:0910-1
suse-csafSUSE-SU-2026:1095-1
usnUSN-8101-1
msrcCVE-2026-28420
🔗

References & Sources

4
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://github.com/vim/vim/commit/bb6de2105b160e729c34063Patch
https://github.com/vim/vim/releases/tag/v9.2.0076Product
https://github.com/vim/vim/security/advisories/GHSA-rvj2-jrf9-2phgPatchVendor Advisory
http://www.openwall.com/lists/oss-security/2026/02/27/9Mailing ListPatchThird Party Advisory
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