Vulnerability 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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Vim | Vim | < 9.2.0842 |
Related Weaknesses (CWE)
References
- https://github.com/vim/vim/commit/5598618b2daf8e36b3bf0251caaefcf0bf8e85e4Patch
- https://github.com/vim/vim/releases/tag/v9.2.0842ProductRelease Notes
- https://github.com/vim/vim/security/advisories/GHSA-49m8-wwxj-mr69PatchVendor Advisory
FAQ
What is CVE-2026-73070?
CVE-2026-73070 is a vulnerability with a CVSS score of 5.5 (MEDIUM). 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 t...
How severe is CVE-2026-73070?
CVE-2026-73070 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-73070?
Check the references section above for vendor advisories and patch information. Affected products include: Vim Vim.