CVE-2021-3927: vim vim/vim

Affected products, as the CNA wrote them
Vendor	Product	Versions
vim	vim/vim	affected unspecified to before 8.2.3581 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
7.3	High	3.0	CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:H/A:H	CNA (@huntrdev)

CISA KEV Not listed.
EPSS 0.017, the 77th percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

This record came from the full history of the CVE Program, published 5 Nov 2021. New records show when each source confirmed them.

Sources

CVE List: CVE-2021-3927
NVD: CVE-2021-3927

References from the CNA

huntr.dev/bounties/9c2b2c82-48bb-4be9-ab8f-a48ea252d1b0
github.com/vim/vim/commit/0b5b06cb4777d1401fdf83e7d48d287662236e7e
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PGW56Z6IN4UVM3E5RXXF4G7LGGTRBI5C/ vendor-advisory
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BCQWPEY2AEYBELCMJYHYWYCD3PZVD2H7/ vendor-advisory
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FNXY7T5OORA7UJIMGSJBGHFMU6UZWS6P/ vendor-advisory
www.openwall.com/lists/oss-security/2022/01/15/1 mailing-list
lists.debian.org/debian-lts-announce/2022/03/msg00018.html mailing-list
security.gentoo.org/glsa/202208-32 vendor-advisory
lists.debian.org/debian-lts-announce/2022/11/msg00009.html mailing-list

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.