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July 27, 2021 |

Apple releases out-of-band update

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On 26 July 2021, Apple released an out-of-band security update to address an actively exploited vulnerability. Timely updates are recommended.


  • The issue, tracked as CVE-2021-30807, is in the subsystem of the IOMobileFramebuffer kernel extension. It is a local privilege escalation (LPE) flaw allowing a local application to trigger memory corruption and execute malicious code with kernel privileges.
  • Apple reported that this issue may have been actively exploited.
  • The versions of Apple products fixing this vulnerability are iOS 14.7.1, iPadOS 14.7.1, and macOS Big Sur 11.5.1.


  • If you are using any of the vulnerable Apple products, ensure you have the latest updates installed.
  • Check for and install software updates on your device manually by going to Settings > General > Software Update.