SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityAnalyzed

CVE-2023-32439

Apple Multiple Products WebKit Type Confusion Vulnerability

KEVHIGH 8.8EPSS 23.8%

Does this matter?

Known to be exploited in the wild (CISA KEV, CISA remediation deadline 14 July 2023). Treat as an emergency change: patch or isolate now, then hunt for prior compromise.

Description

A type confusion issue was addressed with improved checks. This issue is fixed in iOS 16.5.1 and iPadOS 16.5.1, iOS 15.7.7 and iPadOS 15.7.7, macOS Ventura 13.4.1, Safari 16.5.1. Processing maliciously crafted web content may lead to arbitrary code execution. Apple is aware of a report that this issue may have been actively exploited.

CVSS 3.1
8.8 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS
23.79% probability · 98th percentile
CISA KEV
Listed 23 June 2023 · due 14 July 2023
Weakness
CWE-843
Affected
apple/safari · apple/ipados · apple/iphone os · apple/macos · webkitgtk/webkitgtk\+
Source
product-security@apple.com

CISA notes

Apply updates per vendor instructions. https://support.apple.com/en-us/HT213813, https://support.apple.com/en-us/HT213811, https://support.apple.com/en-us/HT213814, https://support.apple.com/en-us/HT213816; https://nvd.nist.gov/vuln/detail/CVE-2023-32439

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.