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THREAT OPS › Threat News › [CISA KEV] CVE-2026-65400 — Apple macOS: Apple macOS Improper Authentication Vulnerability

[CISA KEV] CVE-2026-65400 — Apple macOS: Apple macOS Improper Authentication Vulnerability

medcisa_kevPublished 2026-08-18

CVE: CVE-2026-65400 Vendor: Apple Product: macOS Vulnerability: Apple macOS Improper Authentication Vulnerability Date Added: 2026-08-18 Required Action: Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow appl

MITRE ATT&CK techniques

Cloud ServicesT1021.007
CredentialsT1589.001

Indicators of compromise

CVE-2026-65400cve

Original source: https://nvd.nist.gov/vuln/detail/CVE-2026-65400