CVE-2021-30807
Apple Multiple Products Memory Corruption Vulnerability
CVSS
7.8HighExploit odds (EPSS)28.8%Chance of exploitation activity in the next 30 days, higher than 98% of CVEs. Scored 23 Oct 2026FIRST EPSS
CISA required actionApply updates per vendor instructions. CISA KEV
What fixes it
A fixed version on one release line is not the upgrade target for every line. Check your exact version and any vendor backports.
Timeline
Description
Apple iOS, iPadOS, macOS, and watchOS IOMobileFrameBuffer contain a memory corruption vulnerability which may allow an application to execute code with kernel privileges.
Text from CVE List
Affected versions 3
- macOSaffected: unspecified before 11.5CVE List
- macOSaffected: unspecified before 14.7CVE List
- macOSaffected: unspecified before 7.6CVE List
References 5
- nvd.nist.gov/vuln/detail/CVE-2021-30807Referencevia CISA KEV
- support.apple.com/en-us/HT212622Referencevia CVE List
- support.apple.com/en-us/HT212623Referencevia CVE List
- support.apple.com/en-us/HT212713Referencevia CVE List
- cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-30807Referencevia CVE List