Live › vulnerability › CVE-2023-41991
Go to dashboardApple iOS, iPadOS, macOS and watchOS have an improper certificate validation flaw that lets a malicious app bypass signature validation. CISA lists it as known exploited in the wild.
Summary written from the sources below. Check the originals before acting.
First seen by InfraStack 2026-10-23 19:11 UTC, 3h before NVD. All times on this page are UTC.
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
| Product | Ecosystem | Affected | Fixed in |
|---|---|---|---|
| Apple Multiple Products | vendor | – | – |
| apple ipados | vendor | < 16.7 | 16.7 |
| apple ipados | vendor | = 17.0 | – |
| apple iphone os | vendor | < 16.7 | 16.7 |
| apple iphone os | vendor | = 17.0 | – |
| apple macos | vendor | >= 13.0, < 13.6 | 13.6 |
Unknown from the sources.
Apply mitigations per vendor instructions or update to a fixed Apple OS release; the sources do not name the fixed versions.
Each row is the first time that source carried this signal. The analyst’s rows are its own findings.
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.
This page as .md · .json · in your agent: get_signal("CVE-2023-41991")
CISA KEV catalog, Creative Commons 0 · NVD data is provided by NIST and is public domain. Posts quoted belong to their authors.