MEDIUM CISA KEV

CVE-2023-41991

CVSS v3

5.5

MEDIUM

EPSS Score

3.2%

exploit probability

CISA KEV

Yes

known exploited

Exploitation

—

SSVC status

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.

CISA Known Exploited Vulnerability

Date Added
9/25/2023
Patch Due Date
10/16/2023
Ransomware Use
Unknown

Technical details

Published
9/21/2023

Frequently asked questions

What is CVE-2023-41991?

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.

Is CVE-2023-41991 actively exploited?

Yes. CVE-2023-41991 is on the CISA Known Exploited Vulnerabilities (KEV) catalog, meaning it has been confirmed as actively exploited in the wild. CISA requires federal agencies to patch by 10/16/2023.

What is the CVSS score for CVE-2023-41991?

CVE-2023-41991 has a CVSS v3 base score of 5.5 (MEDIUM severity).

Is CVE-2023-41991 affecting your environment?

Use isMalicious to check if any of your IPs or domains are associated with this vulnerability's IOCs.

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