CVE-2024-27834 — Safari — Fixed in 17.5 (+ other fixes)
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.
Fixed versions
Choose the version for your installed product and release branch.
| Product | Fixed versions |
|---|---|
| Safari | 17.5 |
| iOS | 16.7.8 / 17.5 |
| iPadOS | 16.7.8 / 17.5 |
| macOS Sonoma | 14.5 |
| tvOS | 17.5 |
| watchOS | 10.5 |
Actively exploited
- In the CISA exploited-vulnerabilities catalogue since Nov 4, 2026
- US federal agencies must remediate it by Nov 18, 2026 (BOD 22-01)
- First attack observed 903 days after disclosure
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.
Source: CISA KEV · Nov 4, 2026 Nov 4, 2026
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:NAffected products
| Vendors | Product | Versions |
|---|---|---|
| apple | safari | < 17.5 |
| apple | ipados | < 17.5 |
| apple | iphone os | < 17.5 |
| apple | macos | < 14.5 |
| apple | tvos | < 17.5 |
| apple | watchos | < 10.5 |
| webkitgtk | webkitgtk | < 2.44.2 |
| wpewebkit | wpe webkit | < 2.44.2 |
| fedoraproject | fedora | 39 |
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This product uses the NVD API but is not endorsed or certified by the NVD.