CVE-2021-4187: vim vim/vim

Affected products, as the CNA wrote them
Vendor	Product	Versions
vim	vim/vim	affected unspecified to before 8.2 custom

Not analysed yet

We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.

Severity and exploitation

Score	Rating	CVSS	Vector	Source
6.8	Medium	3.0	CVSS:3.0/AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:H/A:H	CNA (@huntrdev)

CISA KEV Not listed.
EPSS 0.018, the 78th percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

29 Dec 2021, 17:10 UTC Confirmed by the CVE List
29 Dec 2021, 17:15 UTC Confirmed by NVD

Sources

References from the CNA

huntr.dev/bounties/a8bee03a-6e2e-43bf-bee3-4968c5386a2e confirm
github.com/vim/vim/commit/4bf1006cae7e87259ccd5219128c3dba75774441
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2EY2VFBU3YGGWI5BW4XKT3F37MYGEQUD/ vendor-advisoryfedora
www.openwall.com/lists/oss-security/2022/01/15/1 mailing-listmlist
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3FH2J57GDA2WMBS6J56F6QQRA6BXQQFZ/ vendor-advisoryfedora
support.apple.com/kb/HT213183 confirm
seclists.org/fulldisclosure/2022/Mar/29 mailing-listfulldisc
support.apple.com/kb/HT213256 confirm
seclists.org/fulldisclosure/2022/May/35 mailing-listfulldisc
support.apple.com/kb/HT213343 confirm
seclists.org/fulldisclosure/2022/Jul/14 mailing-listfulldisc
security.gentoo.org/glsa/202208-32 vendor-advisorygentoo

Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description.