CVE-2022-26783
Published: 15 April 2022
Summary
CVE-2022-26783 is a medium-severity an unspecified weakness vulnerability in Microsoft Windows Server 2016. Its CVSS base score is 6.5 (Medium).
Operationally, ranked in the top 6.4% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
Deeper analysis
CVE-2022-26783 is an information disclosure vulnerability affecting Windows Hyper-V Shared Virtual Hard Disks. The flaw carries a CVSS 3.1 score of 6.5 and permits unauthorized exposure of sensitive data from shared virtual hard disk configurations within the Hyper-V virtualization platform.
An attacker with low privileges can exploit the issue remotely over a network without user interaction, resulting in high-impact confidentiality loss while leaving integrity and availability unaffected. The attack vector requires only standard authenticated access to a Hyper-V environment hosting shared VHD resources.
Microsoft publishes mitigation guidance and patches through its Security Response Center update guide at the referenced advisory URL. The associated EPSS score has remained flat at 0.1104 with no material increase since disclosure.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2022-31333
Vulnerability details
Windows Hyper-V Shared Virtual Hard Disks Information Disclosure Vulnerability
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
Mitigating Controls
No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.