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9.1Critical

Apple Ipados

CVE-2026-86881

A certificate validation issue was addressed with improved certificate validation. This issue is fixed in iOS 26.7 and iPadOS 26.7, iOS 27 and iPadOS 27, macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7, tvOS 27, visionOS 27, watchOS 27. An attacker with a compromised intermediate certificate authority may be able to issue certificates with arbitrary extended key usages.

What this means for your business

  • It affects Apple Ipados. It matters if your company, or a supplier that handles your data, runs it.
  • An attacker can use it remotely, over a network, without a login, and without anyone at your company clicking anything.
  • FIRST's prediction model gives it a 0.1% chance of attack attempts being seen in the next 30 days, ranking above 4% of all known flaws.

What to do

  1. 1Check whether your company or your suppliers run Apple Ipados, and which version. The affected versions are listed further down this page.
  2. 2If you do, apply the vendor's fix. A patch or vendor advisory has been published.

Not sure if your company is exposed?

Fastnexa’s certified penetration testers can check whether attackers could use this flaw, or others like it, against your websites, apps and network. The full test is free for our first 10 founding clients until 31 December 2026.

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Scoring

CVSS
9.1 (v3.1)
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Weakness
CWE-295
Assigned by
product-security@apple.com

Dates

Published
2026-09-14
Last modified
2026-09-16
Sources
NVD

Affected products

  • Apple Ipados- 26.7
  • Apple Iphone Os- 26.7
  • Apple Macos15.0 - 15.8, 26.0 - 26.7
  • Apple Tvos- 27.0
  • Apple Visionos- 27.0
  • Apple Watchos- 27.0

As listed in the NVD configuration data. Not a statement about your estate.

References