CVE-2021-4193: Apple Mac OS X

Medium severity, CVSS 5.5. EPSS: 1.8% chance of exploitation in the next 30 days.

vim is vulnerable to Out-of-bounds Read

Affected products

• Apple Mac OS X: version 10.15.7 only
• Apple macOS: before 12.3 (fixed in 12.3); from 11.0, before 11.6.6 (fixed in 11.6.6); version 10.15.7 only
• Debian Debian Linux: version 9.0 only; version 10.0 only
• Fedoraproject Fedora: version 34 only
• Vim Vim: before 8.2.3950 (fixed in 8.2.3950)

Published 2021-12-31. Last modified 2026-06-17.