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?

6 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

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: 0.001 (29.5th 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

Weakness classification (CWE)

CWE-77 — Command Injection

Public proof-of-concept exploits

References

Windows BitLocker Security Feature Bypass Vulnerability (vendor-advisory, patch, Mitigation, 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?: 6 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.