CVE-2022-21899 : Windows Extensible Firmware Interface Security Feature Bypass Vulnerability

Windows Extensible Firmware Interface Security Feature Bypass Vulnerability

Published 2022-01-11 21:15:12

Updated 2023-12-21 01:15:23

View at NVD, CVE.org

Products affected by CVE-2022-21899

Microsoft » Windows Server 2008 » Version: R2 Update SP1 For X64
cpe:2.3:o:microsoft:windows_server_2008:r2:sp1:*:*:*:*:x64:*
Matching versions
Microsoft » Windows 7 » Version: N/A Update SP1 For X64
cpe:2.3:o:microsoft:windows_7:-:sp1:*:*:*:*:x64:*
Matching versions
Microsoft » Windows 7 » Version: N/A Update SP1 For X86
cpe:2.3:o:microsoft:windows_7:-:sp1:*:*:*:*:x86:*
Matching versions
Microsoft » Windows Server 2012 » Version: N/A
cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:*
Matching versions
Microsoft » Windows Server 2012 » Version: R2
cpe:2.3:o:microsoft:windows_server_2012:r2:*:*:*:*:*:*:*
Matching versions
Microsoft » Windows 8.1 » Version: N/A
cpe:2.3:o:microsoft:windows_8.1:-:*:*:*:*:*:*:*
Matching versions
Microsoft » Windows Rt 8.1 » Version: N/A
cpe:2.3:o:microsoft:windows_rt_8.1:-:*:*:*:*:*:*:*
Matching versions
Microsoft » Windows 10 » Version: N/A For X64
cpe:2.3:o:microsoft:windows_10:-:*:*:*:*:*:x64:*
Matching versions
Microsoft » Windows 10 » Version: N/A For X86
cpe:2.3:o:microsoft:windows_10:-:*:*:*:*:*:x86:*
Matching versions

EPSS FAQ

0.06%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 23 %

Percentile, the proportion of vulnerabilities that are scored at or less

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
4.9	MEDIUM	AV:L/AC:L/Au:N/C:N/I:N/A:C	3.9	6.9	NIST
Access Vector: Local Access Complexity: Low Authentication: None Confidentiality Impact: None Integrity Impact: None Availability Impact: Complete
5.5	MEDIUM	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H	1.8	3.6	Microsoft Corporation
Attack Vector: Local Attack Complexity: Low Privileges Required: Low User Interaction: None Scope: Unchanged Confidentiality: None Integrity: None Availability: High

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2022-21899

CVE-2022-21899 - Security Update Guide - Microsoft - Windows Extensible Firmware Interface Security Feature Bypass Vulnerability
Patch;Vendor Advisory
https://www.zerodayinitiative.com/advisories/ZDI-22-052/

ZDI-22-052 | Zero Day Initiative
Third Party Advisory

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