Apple Multiple Products Improper Authentication Vulnerability
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.
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
Read at CISA Known Exploited Vulnerabilities catalog
- Vendor
- Apple
- Product
- Multiple Products
- EPSS
- 0.006 (p49)
- CISA KEV
- added 4 Nov 2026, due 18 Nov 2026 (14d)
- Exploitation
- observed in the wild
- Fix
- available
- Weakness
- CWE-287
- Exposure class
- Mobile OS, Operating system, Browser
Why it ranks 81 (Critical)
- CISA KEV listed, remediation due 2026-11-18
- Product class: mobile OS, operating system
- Widely deployed vendor product (Apple)
- Fix available
- Government advisory
- Recency: items published within 24 hours gain 15, within 72 hours 6, within 7 days 2.
Links
- CISA Known Exploited Vulnerabilities catalog (nvd.nist.gov)
- Vendor advisory (support.apple.com)
- CVE-2024-27834 on this site · NVD · CVE.org · Vulnpedia · KEV