High 7.3Published Nov 4, 2021

CVE-2021-3927Heap-based Buffer Overflow in vim/vim

Updated under an hour ago (Oct 27, 2026, 10:40 PM ET)

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It affects vim/vim and 2 other products. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for vim/vim

Exploited in the last 30 days

vim is vulnerable to Heap-based Buffer Overflow

CVSS: 7.3 HIGH (v3.0, CNA)CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:H/A:H
Weakness (CWE): CWE-122
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: @huntrdev
NVD analysis: Modified
Record last updated: Oct 8, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

vim vim/vim vim:vim (from the name)	from unspecified before 8.2.3581	CNA record
vim vim vim:vim	before 8.2.3581	NVD
fedoraproject fedora fedoraproject:fedora	33; 34; 35	NVD
debian debian_linux debian:debian_linux	9.0; 10.0	NVD

References

References

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

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.