CVE-2021-30889

webkitgtk: Buffer overflow leading to arbitrary code execution

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Severity

Moderate

Red Hat Product Security

8.8

CVSS 3.1

Review impact separately from score.

Published · December 20, 2021

Updated · November 1, 2026

Description

A buffer overflow flaw was found in WebKitGTK. Specially crafted web content could use this flaw to trigger an arbitrary code execution when processed.

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 · 8.8
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CWE-120 · Buffer Copy without Checking Size of Input