CVE-2024-27834

MediumActively exploited (CISA KEV)

Description

The issue was addressed with improved checks. This issue is fixed in Safari 17.5, iOS 16.7.8 and iPadOS 16.7.8, iOS 17.5 and iPadOS 17.5, macOS Sonoma 14.5, tvOS 17.5, watchOS 10.5. An attacker with arbitrary read and write capability may be able to bypass Pointer Authentication.

SeverityMedium
CVSS5.5
Exploit probability—
ProductApple Multiple Products
PublishedMay 14, 2024
First seenMay 14, 2024
Added to KEVNov 4, 2026
Weakness typeCWE-277CWE-277

How to fix

CISA required action

Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.

CISA due date: Nov 18, 2026
Update
  • apple safari17.5 or later
  • apple ipados17.5, 16.7.8 or later
  • apple iphone_os17.5, 16.7.8 or later
  • apple macos14.5 or later
  • apple tvos17.5 or later
  • apple watchos10.5 or later
  • webkitgtk webkitgtk2.44.2 or later
  • wpewebkit wpe_webkit2.44.2 or later

Affected products

ProductAffected versionsFixed in
apple safariv < 17.517.5
apple ipadosv < 17.5, v < 16.7.8, 17.0 ≤ v < 17.517.5, 16.7.8
apple iphone_osv < 17.5, v < 16.7.8, 17.0 ≤ v < 17.517.5, 16.7.8
apple macos14.0 ≤ v < 14.5, v < 14.514.5
apple tvosv < 17.517.5
apple watchosv < 10.510.5
webkitgtk webkitgtkv < 2.44.22.44.2
wpewebkit wpe_webkitv < 2.44.22.44.2
fedoraproject fedora39, 40—

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