Apple Multiple Products WebKit Use-After-Free Vulnerability

Technical Severity

CVSS v3.1 Metrics

HIGH

8.8 / 10

Minimal Risk Critical

Vector Specification

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

Exploitation Likelihood

EPSS Prediction

0.02 %

Predictive Probability

Percentile Rank

4.3 th

Documented as more likely to be exploited than 4.3% of known CVEs.

Detection Date

May 22, 2023

Remediation Due

Jun 12, 2023

CISA Catalog Active

Threat Analysis

Apple iOS, iPadOS, macOS, tvOS, watchOS, and Safari WebKit contain a use-after-free vulnerability that leads to code execution when processing maliciously crafted web content. This vulnerability could impact HTML parsers that use WebKit, including but not limited to Apple Safari and non-Apple products which rely on WebKit for HTML processing.

Remediation Directive

Apply updates per vendor instructions.

External Intelligence

https://support.apple.com/HT213757,

NVD

National Vulnerability Database

https://nvd.nist.gov/vuln/detail/CVE-2023-32373