CVE-2021-26892
published 2021-03-11CVE-2021-26892: Windows Extensible Firmware Interface Security Feature Bypass Vulnerability
PriorityP424medium5.5CVSS 3.1
AVLACLPRLUINSUCNINAH
EPSS
1.31%
70.6th percentile
Windows Extensible Firmware Interface Security Feature Bypass Vulnerability
Affected
31 ranges· showing 25
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| microsoft | windows_10 | — | — |
| microsoft | windows_10 | — | — |
| microsoft | windows_10 | — | — |
| microsoft | windows_10 | — | — |
| microsoft | windows_10 | — | — |
| microsoft | windows_10 | — | — |
| microsoft | windows_10_version_1607 | >= 10.0.14393.0 < 10.0.14393.4283 | 10.0.14393.4283 |
| microsoft | windows_10_version_1803 | >= 10.0.0 < 10.0.17134.2087 | 10.0.17134.2087 |
| microsoft | windows_10_version_1809 | >= 10.0.0 < 10.0.17763.1817 | 10.0.17763.1817 |
| microsoft | windows_10_version_1809 | >= 10.0.17763.0 < 10.0.17763.1817 | 10.0.17763.1817 |
| microsoft | windows_10_version_1909 | >= 10.0.0 < 10.0.18363.1440 | 10.0.18363.1440 |
| microsoft | windows_10_version_2004 | >= 10.0.0 < 10.0.19043.867 | 10.0.19043.867 |
| microsoft | windows_10_version_20h2 | >= 10.0.0 < 10.0.19043.867 | 10.0.19043.867 |
| microsoft | windows_server_2016 | — | — |
| microsoft | windows_server_2016 | — | — |
| microsoft | windows_server_2016 | — | — |
| microsoft | windows_server_2016 | >= 10.0.14393.0 < 10.0.14393.4283 | 10.0.14393.4283 |
| microsoft | windows_server_2019 | >= 10.0.17763.0 < 10.0.17763.1817 | 10.0.17763.1817 |
| microsoft | windows_server_version_2004 | >= 10.0.0 < 10.0.19043.867 | 10.0.19043.867 |
| microsoft | windows_server_version_20h2 | >= 10.0.0 < 10.0.19043.867 | 10.0.19043.867 |
| msrc | windows_10_version_1607 | — | — |
| msrc | windows_10_version_1803 | — | — |
| msrc | windows_10_version_1809 | — | — |
| msrc | windows_10_version_1909 | — | — |
| msrc | windows_10_version_2004 | — | — |
CVSS provenance
nvdv3.15.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
nvdv2.02.1LOWAV:L/AC:L/Au:N/C:N/I:N/A:P
vendor_msrc6.2MEDIUM
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Microsoft
Windows Extensible Firmware Interface Security Feature Bypass Vulnerability
vendor_msrc·2021-03-09·CVSS 6.2
CVE-2021-26892 [MEDIUM] Windows Extensible Firmware Interface Security Feature Bypass Vulnerability
Windows Extensible Firmware Interface Security Feature Bypass Vulnerability
Windows Extensible Firmware Interface: Windows Extensible Firmware Interface
Microsoft: Microsoft
Impact: Security Feature Bypass
Exploit Status: Publicly Disclosed:No;Exploited:No;Latest Software Release:Exploitation Less Likely;Older Software Release:Exploitation Less Likely;DOS:N/A
Reference: https://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB5000809
Reference: https://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB5000822
Reference: https://support.microsoft.com/help/5000822
Reference: https://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB5000808
Reference: https://support.microsoft.com/help/5000808
Reference: https://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB5000802
VulDB
Microsoft Windows up to Server 2019 Extensible Firmware Interface
vuldb·2026-08-20·CVSS 5.5
CVE-2021-26892 [MEDIUM] Microsoft Windows up to Server 2019 Extensible Firmware Interface
A vulnerability identified as problematic has been detected in Microsoft Windows. Affected is an unknown function of the component Extensible Firmware Interface. The manipulation leads to an unknown weakness.
This vulnerability is referenced as CVE-2021-26892. The attack can only be performed from a local environment. No exploit is available.
Applying a patch is the recommended action to fix this issue.
GHSA
GHSA-hmxv-f559-cmw6: Windows Extensible Firmware Interface Security Feature Bypass Vulnerability
ghsa_unreviewed·2022-05-24
CVE-2021-26892 [MEDIUM] GHSA-hmxv-f559-cmw6: Windows Extensible Firmware Interface Security Feature Bypass Vulnerability
Windows Extensible Firmware Interface Security Feature Bypass Vulnerability
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
2021-03-11
Published