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CVE-2026-28419

Vim has Heap-based Buffer Underflow in Emacs tags parsing

Published: 2/27/2026 Last updated: 3/2/2026 Reserved: 2/27/2026

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.

CNA assigner: GitHub_M (a0819718-46f1-4df5-94e2-005712e83aaa) Requested by: n/a

Metrics

Version Score Severity Vector String
3.1 5.3 Medium CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L

Opam packages affected (1)

conf-vim

Products affected (2)

Product Vendor Version
vim vim < 10.0.19044.4651
vim vim < 10.0.14393.7159

References (8)