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[ CVE-2023-41993 · Published 21 Sep 2023 ]

Apple Multiple Products WebKit Code Execution Vulnerability

Exploited · CISA KEV CVSS 8.8 EPSS 24%No fix listed yet

[ Why it matters ]Priority signals

  • Exploited in the wild: on CISA's Known Exploited Vulnerabilities list since 2023-09-25
  • EPSS: 24% chance of exploitation in the next 30 days (higher than 98% of CVEs)

[ Description ]Official description

The issue was addressed with improved checks. This issue is fixed in macOS Sonoma 14. Processing web content may lead to arbitrary code execution. Apple is aware of a report that this issue may have been actively exploited against versions of iOS before iOS 16.7.

CISA: Apple iOS, iPadOS, macOS, and Safari WebKit contain an unspecified 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.

[ Fixes ]Fixes and patches

CISA required action (US federal deadline 16 Oct 2023): Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.

[ References ]References