CVE-2021-3974

Use After Free in vim/vim

vim is vulnerable to Use After Free

Affected

vim · vim/vim

CVSS v3.1 NVD

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

CVSS v3.0 HUNTR

7.3 HIGHCVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:H/A:H

CVSS v2.0 NVD

6.8 MEDIUMAV:N/AC:M/Au:N/C:P/I:P/A:P

EPSS

1.36% chance of exploitation in the next 30 days, 71st percentile

Published

2021-11-19

Updated

2026-10-08

Proof-of-concept exploits (1)

• https://huntr.dev/bounties/e402cb2c-8ec4-4828-a692-c95f8e0de6d4

Security advisories

• http://www.openwall.com/lists/oss-security/2022/01/15/1
• vim/vim/commit/64066b9acd9f8cffdf4840f797748f938a13f2d6
• https://lists.debian.org/debian-lts-announce/2022/03/msg00018.html
• https://lists.debian.org/debian-lts-announce/2022/11/msg00009.html
• https://security.gentoo.org/glsa/202208-32

References

• CVE Record
• NVD entry