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CVE EVIDENCE REVIEW
ReviewCriticalEvidence review

CVE-2021-26894 evidence review

Microsoft Windows Server 2008 R2 Service Pack 1, Windows Server 2008 R2 Service Pack 1 (Server Core installation), Windows Server 2008 Service Pack 2

CVE-2021-26894 affects Microsoft Windows Server 2008 R2 Service Pack 1, Windows Server 2008 R2 Service Pack 1 (Server Core installation), Windows Server 2008 Service Pack 2. Review the CVSS score, exploitation signals, affected versions, remediation status, and linked source material before making a change.

Open CVE record
Evidence review

This record remains available for product and version identification, but it is not presented as a complete remediation procedure. Confirm the affected range and the supported fix in a direct vendor advisory before changing production systems.

ProductMicrosoft Windows Server 2008 R2 Service Pack 1, Windows Server 2008 R2 Service Pack 1 (Server Core installation), Windows Server 2008 Service Pack 2
Affected versions>= 6.1.7601.0 < 6.1.7601.24566, >= 6.0.6003.0 < 6.0.6003.21070, >= 6.2.9200.0 < 6.2.9200.23298, >= 6.3.9600.0 < 6.3.9600.19968, >= 10.0.14393.0 < 10.0.14393.4283, >= 10.0.17763.0 < 10.0.17763.1817, >= 10.0.0 < 10.0.19043.867, >= 10.0.0 < 10.0.18363.1440, r2, sp2, 20h2, 1909, 2004
Fixed versionsNo verified fixed-version field is available yet
Priority basisReview · CVSS 9.8 · EPSS 7.27%
01

Identify the product and installed version

Record whether Microsoft Windows Server 2008 R2 Service Pack 1, Windows Server 2008 R2 Service Pack 1 (Server Core installation), Windows Server 2008 Service Pack 2 is present, where it is installed, and which interfaces are exposed.

  • Record the product name, package or appliance identifier, and installed version.
  • Identify internet-facing, administrative, API, and internal access paths.
  • Preserve the pre-change configuration and relevant service logs.
02

Compare the affected range

Use the current record as an identification aid: >= 6.1.7601.0 < 6.1.7601.24566, >= 6.0.6003.0 < 6.0.6003.21070, >= 6.2.9200.0 < 6.2.9200.23298, >= 6.3.9600.0 < 6.3.9600.19968, >= 10.0.14393.0 < 10.0.14393.4283, >= 10.0.17763.0 < 10.0.17763.1817, >= 10.0.0 < 10.0.19043.867, >= 10.0.0 < 10.0.18363.1440, r2, sp2, 20h2, 1909, 2004. Resolve incomplete inventory results before deciding that an asset is unaffected.

03

Verify the authoritative remediation source

Open the linked source material and locate a direct vendor advisory for this CVE. Confirm the supported fixed release and product-specific update path before making a production change.

Operational boundary

This page does not replace the vendor advisory, support contract, change-management process, or recovery plan. Do not infer that an asset is unaffected from an incomplete inventory query or a missing fixed-version field.