Critical severity · published Sep 27, 2023
CVE-2023-40436
The issue was addressed with improved bounds checks
9.1
CVSS
1.3%
EPSS
No
On KEV
Description
The issue was addressed with improved bounds checks. This issue is fixed in macOS Sonoma 14. An attacker may be able to cause unexpected system termination or read kernel memory.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.3% · higher than 70% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
MA
macOS · Apple
before 14.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-40436
CVE.org
https://www.cve.org/CVERecord?id=CVE-2023-40436
Mailing List
http://seclists.org/fulldisclosure/2023/Oct/3
Release Notes
https://support.apple.com/en-us/HT213940
support.apple.com
https://support.apple.com/kb/HT213940
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