Medium 5.3Published Feb 27, 2026

CVE-2026-28419Vim has Heap-based Buffer Underflow in Emacs tags parsing

Updated under an hour ago (Oct 26, 2026, 1:30 PM ET)

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No exploitation reported and no EPSS estimate yet.

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Exploited in the last 30 days

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: 5.3 MEDIUM (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L
Weakness (CWE): CWE-124, CWE-125
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: GitHub_M
NVD analysis: Analyzed
Record last updated: Mar 2, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

vim vim vim:vim (from the name)	before 9.2.0075	CNA record
vim vim vim:vim	before 9.2.0075	NVD

References

References

https://github.com/vim/vim/security/advisories/GHSA-xcc8-r6c5-hvwv	x-refsource-confirm, patch, vendor-advisory
https://github.com/vim/vim/commit/9b7dfa2948c9e1e5e32a5812	x-refsource-misc, patch
https://github.com/vim/vim/releases/tag/v9.2.0075	x-refsource-misc, product
http://www.openwall.com/lists/oss-security/2026/02/27/8	mailing-list, patch, third-party-advisory

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.