CVE-2024-27834Apple Multiple Products Improper Authentication Vulnerability

BOD 26-04 remediation window

With CISA's SSVC answers for this CVE (automatable: no, technical impact: partial), BOD 26-04 Table 1 gives 14 days on a publicly exposed asset (row 4) and 14 days on an asset that is not publicly exposed (row 12) ^S06. CISA set the catalogue due date at 14 days; under BOD 26-04 it reflects CISA's own view of whether the flaw sits on publicly exposed assets ^S07. The directive binds US federal civilian executive branch agencies only.

What CISA says

Short description

Apple iOS, iPadOS, macOS, Safari, tvOS and watchOS 10.5 contain an improper authentication vulnerability which could allow an attacker with arbitrary read and write capability to bypass pointer authentication.

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.

Notes

https://support.apple.com/en-us/120896 ; https://support.apple.com/en-us/120898 ; https://support.apple.com/en-us/120901 ; https://support.apple.com/en-us/120902 ; https://support.apple.com/en-us/120903 ; https://support.apple.com/en-us/120905 ; BOD 26-04: https://www.cisa.gov/news-events/directives/bod-26-04-prioritizing-security-updates-based-risk ; Forensics Triage Requirements: https://www.cisa.gov/news-events/directives/bod-26-04-implementation-guidance-prioritizing-security-updates-based-risk ; https://nvd.nist.gov/vuln/detail/CVE-2024-27834

CWE in the catalogue

CWE-287

Official links

• CISA KEV catalogue entry cisa.gov
• NVD record nvd.nist.gov

Vendor advisory and patch links

References NVD tags Vendor Advisory or Patch, exactly as NVD lists them.

• https://support.apple.com/en-us/HT214101 Vendor Advisory
• https://support.apple.com/en-us/HT214102 Vendor Advisory
• https://support.apple.com/en-us/HT214103 Vendor Advisory
• https://support.apple.com/en-us/HT214104 Vendor Advisory
• https://support.apple.com/en-us/HT214106 Vendor Advisory

Links in CISA's notes

• https://support.apple.com/en-us/120896
• https://support.apple.com/en-us/120898
• https://support.apple.com/en-us/120901
• https://support.apple.com/en-us/120902
• https://support.apple.com/en-us/120903
• https://support.apple.com/en-us/120905
• https://www.cisa.gov/news-events/directives/bod-26-04-prioritizing-security-updates-based-risk
• https://www.cisa.gov/news-events/directives/bod-26-04-implementation-guidance-prioritizing-security-updates-based-risk
• https://nvd.nist.gov/vuln/detail/CVE-2024-27834

NVD details

CWE (NVD)

NVD-CWE-noinfo by nvd@nist.gov, CWE-287 by CISA ADP

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

CVSS versions in NVD

V31

Last modified in NVD

2026-11-05T05:18:14.483

Where each value comes from

This product uses data from the NVD API but is not endorsed or certified by the NVD. CISA does not endorse Sysprobs. Methodology.