Vulnerability in Apple Ios And Ipados
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 activel…
Vulnerability class: Improper Certificate Validation
EPSS: 0.045 (90.5th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N.
Affected products
- Apple Ios And Ipados — versions unspecified
- Apple Ipados — versions 17.0
- Apple Iphone_os — versions 17.0
- Apple Macos — versions unspecified
Weakness classification (CWE)
CISA KEV (Known Exploited Vulnerabilities)
This CVE is on the CISA KEV catalog, added on . CISA KEV inclusion means CISA has confirmed in-the-wild exploitation; US federal agencies are required to remediate within a published due date.
BOD 22-01 due date: .
Required action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Public proof-of-concept exploits
References
- product-security@apple.com (Vendor Advisory)
- product-security@apple.com (Vendor Advisory)
- af854a3a-2127-422b-91ae-364da2661108 (Vendor Advisory)
- af854a3a-2127-422b-91ae-364da2661108 (Vendor Advisory)
- 134c704f-9b21-4f2e-91b3-4a467353bcc0 (US Government Resource)
Frequently asked questions
- What is CVE-2023-41991?
- CVE-2023-41991 is a medium-severity vulnerability in Apple Ios And Ipados, classified under Improper Certificate Validation. CVSS score: 5.5/10. Published 2023-09-21.
- How severe is CVE-2023-41991?
- Medium severity. CVSS v3 base score is 5.5 out of 10.
- Is CVE-2023-41991 known to be exploited?
- Yes. CVE-2023-41991 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2023-09-25), indicating it is being actively exploited. 21 public proof-of-concept repositories are indexed.