CVE-2026-73070

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 v3 5.5 MEDIUM

5.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/vim/vim/commit/5598618b2daf8e36b3bf0251caaefcf0bf8e85e4	Patch
https://github.com/vim/vim/releases/tag/v9.2.0842	Product Release Notes
https://github.com/vim/vim/security/advisories/GHSA-49m8-wwxj-mr69	Patch Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:vim:vim:*:*:*:*:*:*:*:*

History

18 Sep 2026, 14:47

Type	Values Removed	Values Added
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 5.5
CPE		cpe:2.3:a:vim:vim::::::::
First Time		Vim vim Vim
References	~~() https://github.com/vim/vim/commit/5598618b2daf8e36b3bf0251caaefcf0bf8e85e4 -~~	() https://github.com/vim/vim/commit/5598618b2daf8e36b3bf0251caaefcf0bf8e85e4 - Patch
References	~~() https://github.com/vim/vim/releases/tag/v9.2.0842 -~~	() https://github.com/vim/vim/releases/tag/v9.2.0842 - Product, Release Notes
References	~~() https://github.com/vim/vim/security/advisories/GHSA-49m8-wwxj-mr69 -~~	() https://github.com/vim/vim/security/advisories/GHSA-49m8-wwxj-mr69 - Patch, Vendor Advisory

Information

Published : 2026-08-11 16:17

Updated : 2026-10-29 15:55

NVD link : CVE-2026-73070

Mitre link : CVE-2026-73070

CVE.ORG link : CVE-2026-73070

JSON object : View

Products Affected

vim

vim

CWE

CWE-121

Stack-based Buffer Overflow

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