High severity · published Sep 8, 2021
CVE-2021-30784
Multiple issues were addressed with improved logic
7.8
CVSS
0.3%
EPSS
No
On KEV
Description
Multiple issues were addressed with improved logic. This issue is fixed in macOS Big Sur 11.5. A local attacker may be able to execute code on the Apple T2 Security Chip.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 26% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
MA
macOS · Apple
before 11.5 · source: NVD
MO
Mac OS X · Apple
10.14.0 before 10.14.6; 10.15 before 10.15.7; 10.14.6; 10.14.6; 10.14.6; 10.14.6; +25 more · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-30784
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-30784
Release Notes
https://support.apple.com/en-us/HT212602
Vendor Advisory
https://support.apple.com/kb/HT212600
Vendor Advisory
https://support.apple.com/kb/HT212603
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