Medium 6.8Published Aug 11, 2026

CVE-2026-73070Vim: Stack Buffer Overflow in the Vim Socket Server

Updated under an hour ago (2026-10-19 10:00 UTC)

Does this affect you?

It affects vim. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

Do this next

Start free and add your stack

Free account, 1 product

Every CVE for vim

Exploited in the last 30 days

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: 6.8 MEDIUM (v4.0, CNA)CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Weakness (CWE): CWE-121
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: GitHub_M
NVD analysis: Analyzed
Record last updated: Aug 11, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

vim vim vim:vim (from the name)	before 9.2.0842	CNA record
vim vim vim:vim	before 9.2.0842	NVD

References

https://github.com/vim/vim/security/advisories/GHSA-49m8-wwxj-mr69x-refsource-confirm, patch, vendor-advisory
https://github.com/vim/vim/commit/5598618b2daf8e36b3bf0251caaefcf0bf8e85e4x-refsource-misc, patch
https://github.com/vim/vim/releases/tag/v9.2.0842x-refsource-misc, product, release-notes

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.