CVE-2021-30666

A buffer overflow issue was addressed with improved memory handling. This issue is fixed in iOS 12.5.3. 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..

  • Published Sep 8, 2021
  • CVSS 8.8 high
  • 3.0% chance of exploitation in the next 30 days (EPSS)
  • In CISA's Known Exploited Vulnerabilities catalog
  • A fix is available

Affected software

CVE-2021-30666 at the National Vulnerability Database