CVE-2021-3973

HIGH

Vim < 8.2.3611 - Out-of-Bounds Write

Title source: rule

Description

vim is vulnerable to Heap-based Buffer Overflow

Exploits (1)

github WRITEUP 3 stars

by cemonatk · poc

https://github.com/cemonatk/onefuzzyway/tree/main/CVEs/vim/CVE-2021-3973.md

View Code ZIP pw:eip

References (7)

[Exploit, Issue Tracking, Patch, Third Party Advisory] https://huntr.dev/bounties/ce6e8609-77c6-4e17-b9fc-a2e5abed052e

[Patch, Third Party Advisory] https://github.com/vim/vim/commit/615ddd5342b50a6878a907062aa471740bd9a847

View Patch ZIP pw:eip

[Mailing List, Third Party Advisory] https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IH2LS2DXBTYOCWGAKFMBF3HTWWXPBEFL/

[Mailing List, Third Party Advisory] https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FNXY7T5OORA7UJIMGSJBGHFMU6UZWS6P/

[Mailing List, Third Party Advisory] http://www.openwall.com/lists/oss-security/2022/01/15/1

[Mailing List, Third Party Advisory] https://lists.debian.org/debian-lts-announce/2022/03/msg00018.html

[Third Party Advisory] https://security.gentoo.org/glsa/202208-32

Scores

CVSS v3 7.8

EPSS 0.0036

EPSS Percentile 58.0%

Attack Vector LOCAL

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Details

CWE

CWE-122 CWE-787

Status published

Products (4)

debian/debian_linux 9.0

fedoraproject/fedora 34

fedoraproject/fedora 35

vim/vim < 8.2.3611

Published Nov 19, 2021

Tracked Since Feb 18, 2026