Vulnerability in Windows Hyper-V Discrete Device Assignment (CVE-2021-42274)
Summary
Vulnerability in Windows Hyper-V Discrete Device Assignment (CVE-2021-42274). Risk of unauthorized operations or information disclosure.
Original description
The description as published by the source.
Windows Hyper-V Discrete Device Assignment (DDA) Denial of Service Vulnerability
Source: NIST National Vulnerability Database NVD GitHub Advisory
Auto-generated summary
Assembled by SecPulse from the source data (CVSS, CWE, affected versions) using templates — no AI involved. Check the original description and references below for exact details.
A weakness called CVE-2021-42274 was discovered in Windows Hyper-V Discrete Device Assignment.
Severity is Medium (CVSS 6.8/10). Exploitation requires specific conditions but can cause real harm if successful.
What you should do: update the affected software to the latest version. If unsure, ask your IT team or search the vendor's site for "Windows Hyper-V Discrete Device Assignment CVE-2021-42274".
CVE-2021-42274 (Windows Hyper-V Discrete Device Assignment). Severity: Medium / CVSSv3 6.8.
Response plan:
- Check the vendor advisory for affected versions and the patched release.
- If a vulnerable version is running in production, schedule maintenance (urgency from KEV/CVSS).
- If no patch yet, mitigate via WAF rule, disabling the affected feature, etc.
- Monitor logs / SIEM for known IOC and PoC signatures of this CVE.
PoCs and fix commits: see the 'References' section, MITRE, and NVD.
A weakness (CVE-2021-42274) in Windows Hyper-V Discrete Device Assignment. A serious software flaw has been identified.
Target versions of Windows Hyper-V Discrete Device Assignment (see vendor advisory). If running in production, identify exposure immediately.
Severity: Medium (CVSS 6.8/10). Exploitation requires specific conditions but can cause real harm if successful.
Update to the patched release as listed in the vendor advisory.
If a patch is not yet available, consider disabling the affected feature, applying WAF rules, blocking via network ACLs, or isolating the vulnerable version.
Check version information, scan dependencies via SBOM, and monitor SIEM for IOC and PoC signatures related to this CVE.
References
- web msrc.microsoft.com
- web portal.msrc.microsoft.com
- web nvd.nist.gov
- web github.com