CVE-2018-20786: Leonerd Libvterm

High severity, CVSS 7.5. EPSS: 2.9% chance of exploitation in the next 30 days.

libvterm through 0+bzr726, as used in Vim and other products, mishandles certain out-of-memory conditions, leading to a denial of service (application crash), related to screen.c, state.c, and vterm.c.

Affected products

• Leonerd Libvterm: up to and including 0\+bzr726

Published 2019-02-24. Last modified 2026-06-17.