CVE-2026-65400
Apple macOS
Published 6 Aug 2026 · updated 15 Sept 2026 · Analyzed
Exploited in the wild
CISA added this to its Known Exploited Vulnerabilities catalog on 18 Aug 2026, with a remediation deadline of 21 Aug 2026 for US federal agencies.
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 applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.
Description
An authentication issue was addressed with improved state management. This issue is fixed in macOS Golden Gate 27, macOS Sequoia 15.7.9, macOS Sonoma 14.8.9, macOS Tahoe 26.6.1, macOS Tahoe 26.7. An attacker on the network may be able to authenticate to Screen Sharing without valid credentials.
References
- support.apple.com/en-us/148170 · Release Notes, Vendor Advisory
- support.apple.com/en-us/148171 · Release Notes, Vendor Advisory
- support.apple.com/en-us/148172 · Release Notes, Vendor Advisory
- support.apple.com/en-us/149035 · Release Notes, Vendor Advisory
- support.apple.com/en-us/149042 · Release Notes, Vendor Advisory
- seclists.org/fulldisclosure/2026/Aug/36 · Mailing List
- seclists.org/fulldisclosure/2026/Aug/37 · Broken Link
- advisories.ncsc.nl/2026/ncsc-2026-0280.html · Third Party Advisory
- www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-65400 · US Government Resource