CVE-2023-42917—Apple Multiple Products WebKit Memory Corruption Vulnerability

Vulnerability Name

Apple Multiple Products WebKit Memory Corruption Vulnerability

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.

Known To Be Used in Ransomware Campaigns?

Ransomware Status:

Unknown

Action

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

Additional Notes

• https://support.apple.com/en-us/HT214031, https://support.apple.com/en-us/HT214032, https://support.apple.com/en-us/HT214033
• https://nvd.nist.gov/vuln/detail/CVE-2023-42917

Related News Articles

• Apple fixes WebKit zero-day exploited in ‘extremely sophisticated’ attacksMarch 11, 2025
• Apple fixes zero-day exploited in 'extremely sophisticated' attacksFebruary 10, 2025
• Apple fixes this year’s first actively exploited zero-day bugJanuary 27, 2025
• Apple fixes two zero-days used in attacks on Intel-based MacsNovember 19, 2024
• Apple backports fix for zero-day exploited in attacks to older iPhonesMay 13, 2024

Related Weaknesses

• CWE-787