What’s Vulnerable › Vulnerabilities

CVE-2023-42847

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2023-10-25 · updated 2026-06-17

Description

A logic issue was addressed with improved checks. This issue is fixed in macOS Sonoma 14.1, iOS 17.1 and iPadOS 17.1. An attacker may be able to access passkeys without authentication.

Affected products

• Apple iPadOS: from 17.0 before 17.1 — fixed in 17.1
• Apple Iphone Os: from 17.0 before 17.1 — fixed in 17.1
• Apple macOS: from 14.0 before 14.1 — fixed in 14.1

How to fix

Upgrade to a fixed version: Apple iPadOS 17.1; Apple Iphone Os 17.1; Apple macOS 14.1. Check the vendor advisory for mitigations.

References

• http://seclists.org/fulldisclosure/2023/Oct/19
• http://seclists.org/fulldisclosure/2023/Oct/24
• https://support.apple.com/en-us/HT213982
• https://support.apple.com/en-us/HT213984
• https://support.apple.com/kb/HT213982
• https://support.apple.com/kb/HT213984
• http://seclists.org/fulldisclosure/2023/Oct/19
• http://seclists.org/fulldisclosure/2023/Oct/24
• https://support.apple.com/en-us/HT213982
• https://support.apple.com/en-us/HT213984
• https://support.apple.com/kb/HT213982
• https://support.apple.com/kb/HT213984

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