Description
Vim is an open source, command line text editor. Prior to 9.2.0842, the socket server backend in src/socketserver.c accepts unbounded client connections in socketserver_accept(), causing descriptors to overflow fd_set structures in src/channel.c and fixed-size struct pollfd arrays in src/os_unix.c, which allows a local process that can connect to the server socket to corrupt stack memory or terminate the Vim server. This issue is fixed in version 9.2.0842.
Metrics
CVSS 3.1 5.5/10
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| vim | vim | < 9.2.0842 |
References
- https://github.com/vim/vim/commit/5598618b2daf8e36b3bf0251caaefcf0bf8e85e4Patch
- https://github.com/vim/vim/releases/tag/v9.2.0842Product, Release Notes
- https://github.com/vim/vim/security/advisories/GHSA-49m8-wwxj-mr69Patch, Vendor Advisory
Timeline
- Published
- Aug 11, 2026
- Last modified
- Oct 29, 2026
- NVD status
- Analyzed