CVE-2021-1791

An out-of-bounds read issue existed that led to the disclosure of kernel memory. This was addressed with improved input validation. This issue is fixed in macOS Big Sur 11.2, Security Update 2021-001 Catalina, Security Update 2021-001 Mojave, watchOS 7.3, tvOS 14.4, iOS 14.4 and iPadOS 14.4. A malicious application may be able to disclose kernel memory.

CVSS v3.1

5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

CVSS v2.0

7.1 HIGHAV:N/AC:M/Au:N/C:C/I:N/A:N

EPSS

1.21% chance of exploitation in the next 30 days, 66th percentile

Published

2021-04-02

Updated

2024-08-03

Exploit collections (1)

• tzwlhack/Vulnerability/blob/main/CVE-2021-1791%20Fairplay%20OOB%20Read%20POC.md

References

• CVE Record
• NVD entry

Related

• CVE-2021-1782
• CVE-2021-1810
• CVE-2021-1732
• CVE-2021-1879
• CVE-2021-1699
• CVE-2021-1883