CVE-2018-20786

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.

CVSS 3.0

7.5CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS

2.9% chance of exploitation in the next 30 days; higher than 86% of CVEs (scores of 2026-10-25)

CWE

CWE-476

Published

2019-02-24

Modified

2026-10-15

Record from

the NVD, synced 2026-10-19

Affected

• leonerd:libvterm

References

• https://github.com/vim/vim/commit/cd929f7ba8cc5b6d6dcf35c8b34124e969fed6b8
• https://github.com/vim/vim/issues/3711
• https://usn.ubuntu.com/4309-1/
• https://github.com/vim/vim/commit/cd929f7ba8cc5b6d6dcf35c8b34124e969fed6b8
• https://github.com/vim/vim/issues/3711

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