CVE-2023-42950

webkit: heap use-after-free may lead to arbitrary code execution

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Severity

Important

Red Hat Product Security

8.8

CVSS 3.1

Review impact separately from score.

Published · March 8, 2024

Updated · November 21, 2025

Description

A heap use-after-free vulnerability was found in WebKit. Exploiting this flaw involves processing maliciously crafted web content, which may result in arbitrary code execution.

Statement

This vulnerability is Imporatant because it affects the confidentiality, integrity, and availability (CIA) of systems, with a high severity rating.

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-416 · Use After Free