September 25, 2023 · Applied Cybernetics Group
CVE-2023-41991 — Apple Multiple Products
Apple Multiple Products Improper Certificate Validation Vulnerability
- Added to KEV
2023-09-25- Federal due date
2023-10-16- Vendor
- Apple
- Product
- Multiple Products
- EPSS
- 90.5th percentile (score 0.045, as of
2026-07-13) - NVD CVSS v3.1
- —
- Ransomware use
- Unknown
- Upstream
- https://nvd.nist.gov/vuln/detail/CVE-2023-41991
CISA short description
Apple iOS, iPadOS, macOS, and watchOS contain an improper certificate validation vulnerability that can allow a malicious app to bypass signature validation.
Required action
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.