CVE-2022-21894 Public exploit Medium · 4.4 EPSS 8.6%
Secure Boot Security Feature Bypass Vulnerability
Microsoft · Windows 10 Version 1809
Heading is the official description · CVE.org
Priority scorePatchfirst’s 0 to 100 ranking. It adds points for CISA KEV listing, ransomware use, EPSS, threat reports, public exploit code and CVSS. Every CVE page shows the breakdown. Breakdown
65.1 / 100
- Exploited
- Yes, in VulnCheck KEV
- Reports
- 0
- Tactics
- 0/15
Exploitation timelineDated milestones for a CVE: when it was disclosed, when exploit code became public, when exploitation was confirmed, and when threat reports named it.
First seen exploited 14 months after disclosure. Public exploit code (PoC-in-GitHub) appeared 7 months after disclosure.
- Disclosedday 0
- Public exploit codePoC-in-GitHub+7 mo
- First seen exploitedVulnCheck KEV evidence+14 mo
MITRE ATT&CKA public catalogue of the techniques attackers use, maintained by MITRE. Patchfirst uses it to describe what attackers do with a vulnerability. techniques
No techniques linkedNo ATT&CK techniques are linked to this CVE yet. MITRE CTID has not mapped it, and no report passage in the corpus ties it to a technique.
What security researchers reported
Not named in any threat report yetAlso mentioned in 50 community threat pulses (AlienVault OTX)
Weaker evidencePulses are indicator collections that anyone can publish. A mention is not confirmation of exploitation.
- New BlackX UEFI bootkit exploiting Baton Drop28 Oct 2026
- Hackers Revive BlackLotus Techniques to Bypass Windows Secure Boot and Deploy Malware27 Oct 2026
- BlackX UEFI bootkit exploits Baton Drop flaw to bypass Secure Boot24 Oct 2026
- Hackers Use New BlackX Bootkit to Bypass Windows Secure Boot on Fully Patched Systems23 Oct 2026
- New BlackX UEFI bootkit exploiting Baton Drop22 Oct 2026
- How APT41 revived the BlackLotus bootkit to attack diplomatic organizations in Central Asia22 Oct 2026
- 44 more on OTX