CVE-2026-73070

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.

References

• https://github.com/vim/vim/commit/5598618b2daf8e36b3bf0251caaefcf0bf8e85e4
• https://github.com/vim/vim/releases/tag/v9.2.0842
• https://github.com/vim/vim/security/advisories/GHSA-49m8-wwxj-mr69