All vulnerabilities
CVE-2023-42917

Apple Multiple Products WebKit Memory Corruption Vulnerability

Apple Multiple Products
Open in ThreatlineRecord JSON
CVSS
8.8High
ExploitationExploited in the wildAdded to KEV 4 Dec 2023CISA KEV
Exploit odds (EPSS)9.29%Chance of exploitation activity in the next 30 days, higher than 95% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed in17.1Also 14.1CVE List
Federal deadline25 Dec 2023Remediation due date for US federal agenciesCISA KEV
CISA required actionApply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable. CISA KEV

What fixes it

A fixed version on one release line is not the upgrade target for every line. Check your exact version and any vendor backports.

Timeline

  1. 30 Nov 2023, 22:18 UTCPublishedCVE List
  2. 4 Dec 2023Added to CISA KEVCISA KEV

Description

Apple iOS, iPadOS, macOS, and Safari WebKit contain a memory corruption 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.

Text from CVE List

Affected versions 3

  • Safariaffected: unspecified before 17.1CVE List
  • macOSaffected: unspecified before 14.1CVE List
  • iOS and iPadOSaffected: unspecified before 17.1CVE List

References 13