Description
A memory corruption issue was addressed with improved memory handling. This issue is fixed in macOS Big Sur 11.5.1, iOS 14.7.1 and iPadOS 14.7.1, watchOS 7.6.1. An application may be able to execute arbitrary code with kernel privileges. Apple is aware of a report that this issue may have been actively exploited.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Apple | macOS | unspecified – < 11.5, unspecified – < 14.7, unspecified – < 7.6 | 11.5 |
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.
GitHub 2 repositories
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jsherman212/iomfb-exploit ★ 132 · Oct 9, 2021
Exploit for CVE-2021-30807
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30440r/gex ★ 6 · Nov 30, 2021
Gex is an iOS 14.7 jailbreak using CVE-2021-30807 IOMFB & CVE-2021-30860 exploit(s)
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.