CVE-2026-20671

critical

Description

A logic issue was addressed with improved checks. This issue is fixed in watchOS 26.3, tvOS 26.3, macOS Tahoe 26.3, macOS Sonoma 14.8.4, macOS Sequoia 15.7.4, iOS 18.7.5 and iPadOS 18.7.5, visionOS 26.3, iOS 26.3 and iPadOS 26.3. An attacker in a privileged network position may be able to intercept network traffic.

References

https://support.apple.com/en-us/126353

https://support.apple.com/en-us/126352

https://support.apple.com/en-us/126351

https://support.apple.com/en-us/126350

https://support.apple.com/en-us/126349

https://support.apple.com/en-us/126348

https://support.apple.com/en-us/126347

https://support.apple.com/en-us/126346

Details

Source: Mitre, NVD

Published: 2026-02-11

Updated: 2026-02-11

Risk Information

CVSS v2

Base Score: 6.4

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:N

Severity: Medium

CVSS v3

Base Score: 9.1

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Severity: Critical