CVE-2026-86881
28Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 9.1epss 0.3%
exploitation probability
0.3%top 76% of all CVEs
observed exploitation
nono source reports it
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
References
https://support.apple.com/en-us/149034https://support.apple.com/en-us/149035https://support.apple.com/en-us/149036https://support.apple.com/en-us/149037https://support.apple.com/en-us/149038https://support.apple.com/en-us/149041https://support.apple.com/en-us/149042https://support.apple.com/en-us/149043