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CVE-2021-4192

vim: use-after-free in win_linetabsize()

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Severity

Moderate

Red Hat Product Security

7.8

CVSS 3.1

Review impact separately from score.

Published · December 31, 2021

Updated · July 3, 2026

Description

It was found that vim was vulnerable to use-after-free flaw in win_linetabsize(). Sourcing a specially crafted file in vim could crash the vim process or possibly lead to other undefined behaviors.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 3.1 · 7.8
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CWE-416 · Use After Free