CVE-2026-28419

MEDIUM

vim < 9.2.0075 - Heap-Based Buffer Underflow in Emacs-Style Tags File Parser

Title source: llm

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.

References (4)

Core 4

Core References

Patch x_refsource_misc

https://github.com/vim/vim/commit/9b7dfa2948c9e1e5e32a5812

View Patch ZIP pw:eip

Mailing List

http://www.openwall.com/lists/oss-security/2026/02/27/8

Vendor Advisory x_refsource_confirm

https://github.com/vim/vim/security/advisories/GHSA-xcc8-r6c5-hvwv

Release Notes x_refsource_misc

https://github.com/vim/vim/releases/tag/v9.2.0075

Scores

CVSS v3 5.3

EPSS 0.0017

EPSS Percentile 6.4%

Attack Vector LOCAL

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact partial

Details

CWE

CWE-124 CWE-125

Status published

Products (1)

vim/vim < 9.2.0075

Published Feb 27, 2026

Tracked Since Feb 28, 2026