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.
Attack Parameters
Attack Vector
Local
Requires local access
Attack Complexity
Low
Easy to exploit
Privileges Required
None
No privileges needed
User Interaction
Required
User action required
Impact Assessment
Confidentiality
Low
Partial data leak
Integrity
Low
Partial data modification
Availability
Low
Partial disruption
CVSS Vector v3.1
Weakness Type (CWE)
References 4
https://github.com/vim/vim/commit/9b7dfa2948c9e1e5e32a5812
security-advisories@github.com
https://github.com/vim/vim/releases/tag/v9.2.0075
security-advisories@github.com
https://github.com/vim/vim/security/advisories/GHSA-xcc8-r6c5-hvwv
security-advisories@github.com
http://www.openwall.com/lists/oss-security/2026/02/27/8
af854a3a-2127-422b-91ae-364da2661108