# CVE-2024-27834: Apple Multiple Products Improper Authentication Vulnerability

> CVE-2024-27834: Apple Multiple Products Improper Authentication Vulnerability. CVSS 5.5 (CVSS 3.1), in CISA KEV.

Canonical: https://rewindex.com/cve/CVE-2024-27834
Last updated: 2026-11-05T12:56:20Z

- Published: 2024-05-13 23:00 UTC · Updated: 2026-11-05 12:56 UTC · Assigner: apple
- CVSS: 5.5 (CVSS 3.1) · Severity: Medium · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
- EPSS: 1.5%, 75th percentile (scored 2026-11-10)
- CISA KEV: yes, added 2026-11-04, federal due date 2026-11-18, ransomware use: Unknown

## 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.

## 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.

## Affected vendors and products

- Apple: iOS and iPadOS
- Apple: macOS
- Apple: Safari
- Apple: tvOS
- Apple: watchOS

## References

- [CVE record on cve.org](https://www.cve.org/CVERecord?id=CVE-2024-27834)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2024-27834)
- [https://support.apple.com/en-us/120896](https://support.apple.com/en-us/120896)
- [https://support.apple.com/en-us/120898](https://support.apple.com/en-us/120898)
- [https://support.apple.com/en-us/120901](https://support.apple.com/en-us/120901)
- [https://support.apple.com/en-us/120902](https://support.apple.com/en-us/120902)
- [https://support.apple.com/en-us/120903](https://support.apple.com/en-us/120903)
- [https://support.apple.com/en-us/120905](https://support.apple.com/en-us/120905)

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_Sources: CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (https://www.cve.org/) This product uses data from the NVD API but is not endorsed or certified by the NVD. (https://nvd.nist.gov/) Known Exploited Vulnerabilities catalog from CISA. (https://www.cisa.gov/known-exploited-vulnerabilities-catalog) EPSS scores from FIRST (Exploit Prediction Scoring System). (https://www.first.org/epss/)_


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Canonical: https://rewindex.com/cve/CVE-2024-27834 · Markdown: https://rewindex.com/cve/CVE-2024-27834.md · JSON: https://rewindex.com/api/v1/cves/CVE-2024-27834 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-11-11T05:02:06.580Z