Intelligence online17 sources monitored8 actively exploited 7d26 published 24hChecked recently
Vulnerability record

CVE-2023-42917

Apple Multiple Products WebKit Memory Corruption Vulnerability

HighExploitation confirmedCISA KEV
What should I do?

This vulnerability is in the CISA Known Exploited Vulnerabilities catalog: attackers are using it. If you run Multiple Products, fix it now.

CISA required action: Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.

US federal civilian agencies must remediate by Dec 25, 2023.

Patch status

No official fix confirmed yet

Until a fix ships, follow the vendor's mitigations and CISA's required action, limit exposure of affected systems, and watch this record for a patch.

Description

A memory corruption vulnerability was addressed with improved locking. This issue is fixed in iOS 17.1.2 and iPadOS 17.1.2, macOS Sonoma 14.1.2, Safari 17.1.2. Processing web content may lead to arbitrary code execution. Apple is aware of a report that this issue may have been exploited against versions of iOS before iOS 16.7.1.

Source: NIST National Vulnerability Database. Official vulnerability data, reproduced as published.

Affected products

ProductVendorAffected versionsFixed inSource
iOS & iPadOSApple< 15.8.1; >= 16.0, < 16.7.3; >= 17.0, < 17.1.215.8.1; 16.7.3; 17.1.2NVD
macOSApple>= 14.0, < 14.1.214.1.2NVD
Multiple ProductsApple——KEV
SafariApple< 17.1.217.1.2NVD
WebKitGTKWebKitGTK< 2.42.32.42.3NVD

Sources: NVD = NIST National Vulnerability Database; KEV = CISA Known Exploited Vulnerabilities catalog.

Intelligence timeline

Developments from the last 30 days, newest first.

  1. CVSS scoredUpdateKEV

    CVE-2023-42917 scored CVSS 8.8: Apple Multiple Products, Apple Multiple Products WebKit Memory Corruption Vulnerability

    CISA lists this as exploited in the wild. Unpatched Multiple Products systems are exposed to active attacks now.

    Basis: NIST National Vulnerability Database

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Coverage

We have not published a story about this vulnerability yet.

References