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checkm8 is an unpatchable BootROM exploit, first discovered in 2019 by axi0mX, an independent iOS security researcher. It affects all devices from iPhone 4s to iPhone X and requires the device to be in DFU mode to be exploited.
History, History and release & Technical details
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exploit devices ios apple used unpatchable jailbreaking chip security device bootrom also a11 axi0mx iphone 4s affected 2019 dfu checkra1n
| Subject | Predicate | Object | Confidence | Src |
|---|---|---|---|---|
| Checkm8 | Affected hardware | Apple A5 to A11 SoCs (iPhone 4s to iPhone X) | 1.00 | infobox |
| Checkm8 | Affected software | iOS, watchOS, tvOS | 1.00 | infobox |
| Checkm8 | CVE identifier | CVE-2019-8900 | 1.00 | infobox |
| Checkm8 | Date discovered | September 27, 2019; 6 years ago (2019-09-27) | 1.00 | infobox |
| Checkm8 | Date patched | None (Unpatchable in hardware) | 1.00 | infobox |
| Checkm8 | Discoverer | axi0mX | 1.00 | infobox |
| Checkm8 | Used by | checkra1n, palera1n | 1.00 | infobox |
| Checkm8 | is a | unpatchable BootROM exploit | 0.90 | text |
| Location-Based data | instance of | It also helps examine new realms of data for Apple devices | 0.80 | text |
| examination of Internet Activities | instance of | It also helps examine new realms of data for Apple devices | 0.80 | text |
| allows the ability to trace digital footprints | instance of | It also helps examine new realms of data for Apple devices | 0.80 | text |
| devices based on the A11 Bionic chip through iOS 16 updates. iOS 16 includes SEP | instance of | Limitations and mitigationscheckm8 has had its functions and exploit heavily restricted and limited for newer devices | 0.80 | text |
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