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CVE-2022-26937

Windows Network File System Remote Code Execution Vulnerability

CVSS 3.1 Critical 9.8

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C

Description

Windows Network File System Remote Code Execution Vulnerability

Official description from the CVE record, published by microsoft. Copyright © 1999-2026 The MITRE Corporation. See /security/cve/legal for the CVE license. View the record on cve.org

Key data

CVSS 3.1 Critical 9.8

Score published by microsoft in the CVE record.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C

  • Attack vector: Network

    The vulnerable component can be reached over a network, possibly from the Internet.

  • Attack complexity: Low

    No special conditions are needed. The attack can be repeated at will.

  • Privileges required: None

    No account or privileges are needed.

  • User interaction: None

    No action from any user is needed.

  • Scope: Unchanged

    The impact stays within the vulnerable component.

  • Confidentiality impact: High

    Serious or total effect on the secrecy of data.

  • Integrity impact: High

    Serious or total effect on the trustworthiness of data.

  • Availability impact: High

    Serious or total effect on availability.

CVSS is owned and managed by FIRST.Org, Inc. (FIRST) and is used by permission. Each CVSS score on this site is shown together with its vector string, as published in the CVE record by the source named next to it. Learn more at first.org/cvss.

EPSS

Exploit Prediction Scoring System by FIRST: an estimate of the probability that exploitation activity will be observed in the next 30 days.
Score
0.75974 (76.0% probability)
Percentile
99.5%
Scores of
Nov 10, 2026
Model
v2026.06.15

Affected products

Products listed in the CVE record, as the CNA published them.

  • Microsoft Windows Server 2019

    • affected: 10.0.17763.0 up to before 10.0.17763.2928

  • Microsoft Windows Server 2019 (Server Core installation)

    • affected: 10.0.17763.0 up to before 10.0.17763.2928

  • Microsoft Windows Server 2022

    • affected: 10.0.20348.0 up to before 10.0.20348.707

  • Microsoft Windows Server version 20H2

    • affected: 10.0.0 up to before 10.0.19042.1706

  • Microsoft Windows Server 2016

    • affected: 10.0.14393.0 up to before 10.0.14393.5125

  • Microsoft Windows Server 2016 (Server Core installation)

    • affected: 10.0.14393.0 up to before 10.0.14393.5125

  • Microsoft Windows Server 2008 Service Pack 2

    • affected: 6.0.6003.0 up to before 6.0.6003.21481

  • Microsoft Windows Server 2008 Service Pack 2 (Server Core installation)

    • affected: 6.0.6003.0 up to before 6.0.6003.21481

  • Microsoft Windows Server 2008 Service Pack 2

    • affected: 6.0.6003.0 up to before 6.0.6003.21481

  • Microsoft Windows Server 2008 R2 Service Pack 1

    • affected: 6.1.7601.0 up to before 6.1.7601.25954

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

    • affected: 6.1.7601.0 up to before 6.1.7601.25954

  • Microsoft Windows Server 2012

    • affected: 6.2.9200.0 up to before 6.2.9200.23714

  • Microsoft Windows Server 2012 (Server Core installation)

    • affected: 6.2.9200.0 up to before 6.2.9200.23714

  • Microsoft Windows Server 2012 R2

    • affected: 6.3.9600.0 up to before 6.3.9600.20371

  • Microsoft Windows Server 2012 R2 (Server Core installation)

    • affected: 6.3.9600.0 up to before 6.3.9600.20371

References

Links listed in the CVE record. They lead to other sites, which CubePath does not control.

Timeline

  1. ID reserved
  2. Record published
  3. Record last updated

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Data from the CVE Program (MITRE), CISA KEV and FIRST EPSS. CVSS is owned by FIRST and used by permission. Not affiliated with or endorsed by MITRE, CISA or FIRST. Data as of Nov 10, 2026, 19:50 UTC. Sources and licenses