Newly listed by CISAApple Multiple ProductsPhones & computers
Apple Multiple Products Improper Authentication Vulnerability
- What it is
- 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.
- Who's affected
- Anyone using Apple Multiple Products.
- Under attack?
- Yes. CISA added this to its catalog of actively exploited vulnerabilities on Nov 4, 2026.
- What to do
- Install the vendor's security update. If there isn't one yet, apply the vendor's workaround, or stop using the product until it's fixed. CISA lists this as actively exploited, so treat it as urgent.
- Fixed in
- See the vendor's advisory
- CISA deadline
- Federal agencies must fix this by Nov 18, 2026. Everyone else should treat that as a ceiling, not a target.
- CISA's instruction
- 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.
Attack timeline
- May 13, 2024Went publicThe flaw was published with its CVE number.
- Nov 4, 2026+905 daysCISA listed it as exploitedAdded to CISA's Known Exploited Vulnerabilities catalog.
- Nov 18, 2026+14 daysFederal fix deadlineU.S. agencies must have it fixed by this date.
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