CVE-2021-3778: Debian Linux

High severity, CVSS 7.8. EPSS: 1.7% chance of exploitation in the next 30 days.

vim is vulnerable to Heap-based Buffer Overflow

Affected products

• Debian Debian Linux: version 9.0 only
• Fedoraproject Fedora: version 33 only; version 34 only; version 35 only
• Netapp Ontap Select Deploy Administration Utility: affected versions not specified
• Vim Vim: before 8.2.3409 (fixed in 8.2.3409)

Published 2021-09-15. Last modified 2026-06-17.