Medium severity · published Feb 27, 2026
CVE-2026-28419
Vim has Heap-based Buffer Underflow in Emacs tags parsing
6.6
CVSS
0.2%
EPSS
No
On KEV
Description
Vim is an open source, command line text editor. Prior to version 9.2.0075, a heap-based buffer underflow exists in Vim's Emacs-style tags file parsing logic. When processing a malformed tags file where a delimiter appears at the start of a line, Vim attempts to read memory immediately preceding the allocated buffer. Version 9.2.0075 fixes the issue.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:H
Attack vector
Local
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
Low
Integrity
Low
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 9% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
VI
vim · vim
< 9.2.0075 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-28419
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-28419
Patch
https://github.com/vim/vim/commit/9b7dfa2948c9e1e5e32a5812
Product
https://github.com/vim/vim/releases/tag/v9.2.0075
Patch
https://github.com/vim/vim/security/advisories/GHSA-xcc8-r6c5-hvwv
Mailing List
http://www.openwall.com/lists/oss-security/2026/02/27/8
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