CVE-2021-4173

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

6.8 MEDIUMCVSS:3.0/AV:L/AC:L/PR:L/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

1.62% chance of exploitation in the next 30 days, 76th percentile

Published

2021-12-27

Updated

2025-11-03

Proof-of-concept exploits (1)

• https://huntr.dev/bounties/a1b236b9-89fb-4ccf-9689-ba11b471e766

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/9c23f9bb5fe435b28245ba8ac65aa0ca6b902c04
• 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