CVE-2021-4166

Out-of-bounds Read in vim/vim

vim is vulnerable to Out-of-bounds Read

Affected

vim · vim/vim

CVSS v3.1 NVD

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

CVSS v3.0 HUNTR

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

CVSS v2.0 NVD

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

EPSS

1.70% chance of exploitation in the next 30 days, 77th percentile

Published

2021-12-25

Updated

2026-10-08

Proof-of-concept exploits (1)

• https://huntr.dev/bounties/229df5dd-5507-44e9-832c-c70364bdf035

Security advisories

• http://seclists.org/fulldisclosure/2022/Jul/14
• http://seclists.org/fulldisclosure/2022/Mar/29
• http://seclists.org/fulldisclosure/2022/May/35
• http://www.openwall.com/lists/oss-security/2022/01/15/1
• vim/vim/commit/6f98371532fcff911b462d51bc64f2ce8a6ae682
• https://security.gentoo.org/glsa/202208-32
• https://support.apple.com/kb/HT213183
• https://support.apple.com/kb/HT213256
• https://support.apple.com/kb/HT213343

References

• CVE Record
• NVD entry