Medium severity · published Sep 21, 2023
CVE-2023-41991
Apple Multiple Products Improper Certificate Validation Vulnerability
In wildKEV
5.5
CVSS
13.4%
EPSS
Yes
On KEV
Description
A certificate validation issue was addressed. This issue is fixed in macOS Ventura 13.6, iOS 16.7 and iPadOS 16.7. A malicious app may be able to bypass signature validation. Apple is aware of a report that this issue may have been actively exploited against versions of iOS before iOS 16.7.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
Attack vector
Local
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
None
Integrity
High
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)13.4% · higher than 96% of CVEs
Exploited in the wildYes
CISA KEVListed Sep 25, 2023
Federal remediation dueOct 16, 2023
Ransomware campaign useNot known
Affected products
Which versions
MA
macOS · Apple
before 13.6 · source: vendor, NVD
IO
iOS · Apple
before 16.7; 17.0 · source: NVD
IA
iOS and iPadOS · Apple
before 16.7 · source: vendor
MP
Multiple Products · Apple
All versions, or not specified · source: KEV
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-41991
CVE.org
https://www.cve.org/CVERecord?id=CVE-2023-41991
CISA KEV catalogue
https://www.cisa.gov/known-exploited-vulnerabilities-catalog
support.apple.com
https://support.apple.com/en-us/HT213927
support.apple.com
https://support.apple.com/en-us/HT213931
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