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Vulnerability record · CVE-2026-86881 · published 14 September 2026

CVE-2026-86881: Apple ipados improper certificate validation vulnerability

Apple · Ipados

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.

9.1 CVSS 3.1 Critical EPSS 0.40% · top 68.6% CWE-295 · Improper certificate validation
9.1CVSS 3.1 base score
0.40%EPSS exploitation probability, 30 days
NoNot in CISA KEV
6Affected product versions listed by NVD
8References
16 Sep 2026Last modified by NVD

Description

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.

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

Affected products

6 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://support.apple.com/en-us/149034 Release NotesVendor Advisory
https://support.apple.com/en-us/149035 Release NotesVendor Advisory
https://support.apple.com/en-us/149036 Release NotesVendor Advisory
https://support.apple.com/en-us/149037 Release NotesVendor Advisory
https://support.apple.com/en-us/149038 Release NotesVendor Advisory
https://support.apple.com/en-us/149041 Release NotesVendor Advisory
https://support.apple.com/en-us/149042 Release NotesVendor Advisory
https://support.apple.com/en-us/149043 Release NotesVendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2026-86881), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.