CVE-2021-1789

Summary

A type confusion issue was addressed with improved state handling. This issue is fixed in macOS Big Sur 11.2, Security Update 2021-001 Catalina, Security Update 2021-001 Mojave, tvOS 14.4, watchOS 7.3, iOS 14.4 and iPadOS 14.4, Safari 14.0.3. Processing maliciously crafted web content may lead to arbitrary code execution.

Affected Software

VendorProductVersion RangeStatus
AppleiOS and iPadOSunspecified < 14.4affected
ApplemacOSunspecified < 11.2affected
ApplemacOSunspecified < 7.3affected
ApplemacOSunspecified < 14.4affected
ApplemacOSunspecified < 14.0affected

Weaknesses

  • Processing maliciously crafted web content may lead to arbitrary code execution

ADP Enrichment

CVE Program Container

Additional References

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: active
    • Automatable: no
    • Technical Impact: total

Additional References

References