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01 Record

CVE-2022-26784

Windows Cluster Shared Volume (CSV) Denial of Service Vulnerability

MediumPUBLISHEDCNA: microsoft
CNA base score6.5 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C

02 Description

Windows Cluster Shared Volume (CSV) Denial of Service Vulnerability

03 Exploitation and scoring

Exploitation
Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
SSVC decision
  • ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
  • AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
  • Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.
EPSS probability
2.44% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 84.2% of scored records. A rank, not a probability.
NVD base score
6.5 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
NVD analysis status
Modified. NVD last modified this record on 2026-06-17.
Red Hat severity
No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2022-04-15 19:04Z4 YR AGO
Last updated
2025-12-09 21:23Z10 MO AGO
Reserved
2022-03-09
Assigning CNA
microsoft
Record state
PUBLISHED
Severity
Medium (CVSS 6.5)
CNA CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C
Weaknesses
No CWE assigned
Data version
5.2
Document digest
8533ee285b98de2d74aa7d2c78a64278a1fa926a4d43ed2b59fb967a1a946261

05 Affected products

VendorProductVersionsPlatforms
MicrosoftWindows Server 201910.0.17763.0 to < 10.0.17763.2803x64-based Systems
MicrosoftWindows Server 2019 (Server Core installation)10.0.17763.0 to < 10.0.17763.2803x64-based Systems
MicrosoftWindows Server 202210.0.20348.0 to < 10.0.20348.643x64-based Systems
MicrosoftWindows Server version 20H210.0.0 to < 10.0.19042.1645x64-based Systems
MicrosoftWindows Server 201610.0.14393.0 to < 10.0.14393.5066x64-based Systems
MicrosoftWindows Server 2016 (Server Core installation)10.0.14393.0 to < 10.0.14393.5066x64-based Systems
MicrosoftWindows Server 20126.2.9200.0 to < 6.2.9200.23679x64-based Systems
MicrosoftWindows Server 2012 (Server Core installation)6.2.9200.0 to < 6.2.9200.23679x64-based Systems
MicrosoftWindows Server 2012 R26.3.9600.0 to < 6.3.9600.20337x64-based Systems
MicrosoftWindows Server 2012 R2 (Server Core installation)6.3.9600.0 to < 6.3.9600.20337x64-based Systems

06 References