RCE in Microsoft Windows_11_24h2
CVE-2026-45585
Microsoft is aware of a security feature bypass vulnerability in Windows publicly referred to as "YellowKey". The proof of concept for this vulnerability has been made public violating coordinated vulnerability best practices. We…
Vulnerability class: Command Injection (OS Command Injection)
EPSS: 0.012 (66.1th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.8 (Medium). Vector: CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Microsoft Windows_11_24h2
- Microsoft Windows_11_25h2
- Microsoft Windows_11_26h1
- Microsoft Windows 11 Version 24h2 — versions 10.0.26100.0
- Microsoft Windows 11 Version 25h2 — versions 10.0.26200.0
- Microsoft Windows 11 Version 26h1 — versions 10.0.28000.0
- Microsoft Windows Server 2025 — versions 10.0.26100.0
- Microsoft Windows_server_2025
- Microsoft Windows Server 2025 (Server Core Installation) — versions 10.0.26100.0
Weakness classification (CWE)
Public proof-of-concept exploits
- Mclisterjoeh2o/yellowkey-bitlocker
- yellow-key/yellowkey-bitlocker
- iDesignStudioz/yellowkey-bitlocker
- yellowkeys/YellowKey-Bitlocker-CVE-2026-45585
- yellowkey-bitlocker/YellowKey-Bitlocker
- Desireeontrial76/yellowkey-bitlocker
- andrei-majer/bitlocker-hardening
- mysterioinfinino-rgb/YellowKey-Bitlocker-CVE-2026-45585
- 0xBlackash/CVE-2026-45585
- everest90909/YellowKey-WinRE-Remediation
References
- secure@microsoft.com (vendor-advisory, Mitigation, patch, Vendor Advisory)
- 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2026-45585?
- CVE-2026-45585 is a medium-severity vulnerability in Microsoft Windows_11_24h2, classified under Command Injection. CVSS score: 6.8/10. Published 2026-05-20.
- How severe is CVE-2026-45585?
- Medium severity. CVSS v3 base score is 6.8 out of 10.
- Is CVE-2026-45585 known to be exploited?
- 13 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.