CVE-2022-21905
published 2022-01-11CVE-2022-21905: Windows Hyper-V Security Feature Bypass Vulnerability
PriorityP342high8CVSS 3.1
AVAACLPRLUINSUCHIHAH
EPSS
0.73%
50.2th percentile
Windows Hyper-V Security Feature Bypass Vulnerability
Affected
41 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_1507 | >= 10.0.10240.0 < 10.0.10240.19177 | 10.0.10240.19177 |
| microsoft | windows_10_version_1607 | >= 10.0.14393.0 < 10.0.14393.4886 | 10.0.14393.4886 |
| microsoft | windows_10_version_1809 | >= 10.0.17763.0 < 10.0.17763.2452 | 10.0.17763.2452 |
| microsoft | windows_10_version_1909 | >= 10.0.0 < 10.0.18363.2037 | 10.0.18363.2037 |
| microsoft | windows_10_version_21h1 | >= 10.0.0 < 10.0.19043.1466 | 10.0.19043.1466 |
| microsoft | windows_10_version_21h2 | >= 10.0.19043.0 < 10.0.19044.1466 | 10.0.19044.1466 |
| microsoft | windows_11_version_21h2 | >= 10.0.0 < 10.0.22000.434 | 10.0.22000.434 |
| microsoft | windows_7_service_pack_1 | >= 6.1.0 < 6.1.7601.25829 | 6.1.7601.25829 |
| microsoft | windows_8.1 | >= 6.3.0 < 6.3.9600.20246 | 6.3.9600.20246 |
| microsoft | windows_server | — | — |
| microsoft | windows_server | — | — |
| microsoft | windows_server_2008 | — | — |
| microsoft | windows_server_2008_r2_service_pack_1 | >= 6.1.7601.0 < 6.1.7601.25829 | 6.1.7601.25829 |
| microsoft | windows_server_2012 | — | — |
| microsoft | windows_server_2012 | >= 6.2.9200.0 < 6.2.9200.23584 | 6.2.9200.23584 |
| microsoft | windows_server_2012_r2 | >= 6.3.9600.0 < 6.3.9600.20246 | 6.3.9600.20246 |
| microsoft | windows_server_2016 | >= 10.0.14393.0 < 10.0.14393.4886 | 10.0.14393.4886 |
| microsoft | windows_server_2019 | >= 10.0.17763.0 < 10.0.17763.2452 | 10.0.17763.2452 |
| microsoft | windows_server_2022 | >= 10.0.20348.0 < 10.0.20348.469 | 10.0.20348.469 |
CVSS provenance
nvdv3.18.0HIGHCVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
nvdv2.04.9MEDIUMAV:A/AC:M/Au:S/C:P/I:P/A:P
vendor_msrc4.6MEDIUM
Stop checking back — get the weekly exploitation signal.
Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.
GHSA
GHSA-wfrx-qqph-r8qv: Windows Hyper-V Security Feature Bypass Vulnerability
ghsa_unreviewed·2022-01-12·CVSS 4.6
CVE-2022-21905 [MEDIUM] GHSA-wfrx-qqph-r8qv: Windows Hyper-V Security Feature Bypass Vulnerability
Windows Hyper-V Security Feature Bypass Vulnerability. This CVE ID is unique from CVE-2022-21900.
GHSA
GHSA-r5xm-97qq-84pj: Windows Hyper-V Security Feature Bypass Vulnerability
ghsa_unreviewed·2022-01-12·CVSS 4.6
CVE-2022-21900 [MEDIUM] GHSA-r5xm-97qq-84pj: Windows Hyper-V Security Feature Bypass Vulnerability
Windows Hyper-V Security Feature Bypass Vulnerability. This CVE ID is unique from CVE-2022-21905.
Microsoft
Windows Hyper-V Security Feature Bypass Vulnerability
vendor_msrc·2022-01-11·CVSS 4.6
CVE-2022-21905 [MEDIUM] Windows Hyper-V Security Feature Bypass Vulnerability
Windows Hyper-V Security Feature Bypass Vulnerability
FAQ: What configurations or versions could be at risk from this vulnerability?
This bypass could affect any Hyper-V configurations that are using Router Guard.
What is the exposure if the vulnerability was bypassed?
Certain packets that would normally be blocked or dropped could be processed. This could allow an attacker to bypass set policy, potentially influencing router paths.
Role: Windows Hyper-V: Role: Windows Hyper-V
Microsoft: Microsoft
Customer Action Required: Yes
Impact: Security Feature Bypass
Exploit Status: Publicly Disclosed:No;Exploited:No;Latest Software Release:Exploitation Less Likely;Older Software Release:Exploitation Less Likely
Reference: https://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB5009557
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
2022-01-11
Published