www.cisa.gov 8/19/2026, 12:03:41 AM · external

CISA flags macOS Screen Sharing bug CVE-2026-65400 as exploited

Developing story vulnerability 7 articles tracked
Apple macOS Screen Sharing flaw (CVE-2026-65400) exploited for Monero mining
CyberSIXT Evidence Panel Source marked as original reporting
CISA KEV Listed in KEV
Patch Patch Available

THE webpage provides information on the Known Exploited Vulnerabilities (KEV) Catalog maintained by the Cybersecurity and Infrastructure Security Agency (CISA). This catalog serves as an authoritative source for vulnerabilities that have been exploited in the wild, aiming to assist organizations in managing these vulnerabilities effectively. Specifically, it highlights the CVE-2026-65400, an improper authentication vulnerability in Apple macOS, allowing unauthorized network access to Screen Sharing.

Recommendations include applying mitigations as per vendor instructions and following CISA’s guidelines. The KEV catalog is accessible in various formats, including CSV and JSON, and users are encouraged to report any additional exploited vulnerabilities.

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