Man-in-the-Middle (MitM) attack in macOS - CVE-2026-28865

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Main Vulnerability Database Vulnerabilities #VU124335

Man-in-the-Middle (MitM) attack in macOS - CVE-2026-28865

Published: March 25, 2026


Vulnerability identifier: #VU124335
CSH Severity: Medium
CVSS v4: 5.3 [CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N]
CVE-ID: CVE-2026-28865
CWE-ID: CWE-300
Exploitation vector: Adjecent network
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote attacker to gain access to sensitive information.

The vulnerability exists due to an error in the 802.1X protocol implementation when handling authentication requests. A remote attacker on the local network can intercept sensitive information. 


Affected software

macOS
Apple iOS
iPadOS
tvOS
visionOS
watchOS

How to mitigate CVE-2026-28865

Install update from vendor's website.

macOS - addressed in versions 26.4 25E246, 14.8.5 23J423, 15.7.5 24G624
Apple iOS - addressed in versions 18.7.7 22H333, 26.4 23E246
iPadOS - addressed in versions 18.7.7 22H333, 26.4 23E246
tvOS - update to 26.4 23L243
visionOS - update to 26.4
watchOS - update to 26.4 23T240

External References

Related Security Bulletins