Vim is an open source, command line text editor. Prior to version 9.2.0076, a heap-based buffer overflow WRITE and an out-of-bounds READ exist in Vim's terminal emulator when processing maximum combining characters from Unicode supplementary planes. Version 9.2.0076 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
None
No 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/bb6de2105b160e729c34063
security-advisories@github.com
https://github.com/vim/vim/releases/tag/v9.2.0076
security-advisories@github.com
https://github.com/vim/vim/security/advisories/GHSA-rvj2-jrf9-2phg
security-advisories@github.com
http://www.openwall.com/lists/oss-security/2026/02/27/9
af854a3a-2127-422b-91ae-364da2661108