TI-2018-14757 Aliases CVE-2018-20786 GHSA-4r6h-327w-8qwr

libvterm through 0+bzr726, as used in Vim and other products, mishandles certain…

LOW 38CWE-476Published 2019-02-24 · Updated 2026-10-15

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: Low
Impact type: Denial of service
Confidentiality · integrity · availability: None · None · High
Fix status: Deferred Red Hat: fix deferred

Attack profile from CVSS 3.0 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-476.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.02916 87th percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by NVD

Fix Deferred Red Hat: fix deferred

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
—	—	all versions	—	No fix listed	CNA

— Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:leonerd:libvterm::::::::	up to 0\+bzr726	Vulnerable	Leonerd

cpe:2.3:a:leonerd:libvterm:*:*:*:*:*:*:*:* Versions up to 0\+bzr726 Vulnerable ·Leonerd

Remediation

No fixed version listed by the sources yet.

Vendor assessments

Red Hat

Red Hat rating: Low. Red Hat's page for this CVE →

Product	Status	Plan or fix
Red Hat Enterprise Linux 8	Affected	No fix yet: Fix deferred

Timeline

2026-10-02 Threatist record created from CVE-2018-20786
2026-10-03 Alias added: GHSA-4r6h-327w-8qwr
2026-10-16 CISA SSVC decision points changed

References

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences