Medium severity · published Sep 8, 2021
CVE-2021-30783
An access issue was addressed with improved access restrictions
6.5
CVSS
0.3%
EPSS
No
On KEV
Description
An access issue was addressed with improved access restrictions. This issue is fixed in macOS Big Sur 11.5, Security Update 2021-004 Catalina, Security Update 2021-005 Mojave. A sandboxed process may be able to circumvent sandbox restrictions.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:N
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
High
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 28% 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; before 2021 · source: vendor, NVD
SU
Security Update - Catalina · Apple
before 2021 · source: vendor
MO
Mac OS X · Apple
10.14 through 10.14.5; 10.15 through 10.15.6; 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-2021-30783
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-30783
Mailing List
http://seclists.org/fulldisclosure/2021/Sep/40
Release Notes
https://support.apple.com/en-us/HT212600
Release Notes
https://support.apple.com/en-us/HT212602
Release Notes
https://support.apple.com/en-us/HT212603
Vendor Advisory
https://support.apple.com/kb/HT212805
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