CVE-2022-26809

Remote Procedure Call Runtime 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

Remote Procedure Call Runtime Remote Code Execution Vulnerability

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.

Metric	Value	What it means
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: 0.90859 (90.9% probability)
Percentile: 99.8%
Scores of: Nov 10, 2026
Model: v2026.06.15

CISA assessment as of Aug 20, 2024

Stakeholder-Specific Vulnerability Categorization (SSVC) decision points added by CISA.

Exploitation: Public proof of concept recorded by CISA
Automatable: yes
Technical impact: total

Affected products

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

Microsoft Windows 10 Version 1809
- affected: 10.0.17763.0 up to before 10.0.17763.2803
Microsoft Windows 10 Version 1809
- affected: 10.0.0 up to before 10.0.17763.2803
Microsoft Windows Server 2019
- affected: 10.0.17763.0 up to before 10.0.17763.2803
Microsoft Windows Server 2019 (Server Core installation)
- affected: 10.0.17763.0 up to before 10.0.17763.2803
Microsoft Windows 10 Version 1909
- affected: 10.0.0 up to before 10.0.18363.2212
Microsoft Windows 10 Version 21H1
- affected: 10.0.0 up to before 10.0.19043.1645
Microsoft Windows Server 2022
- affected: 10.0.20348.0 up to before 10.0.20348.643
Microsoft Windows 10 Version 20H2
- affected: 10.0.0 up to before 10.0.19042.1645
Microsoft Windows Server version 20H2
- affected: 10.0.0 up to before 10.0.19042.1645
Microsoft Windows 11 version 21H2
- affected: 10.0.0 up to before 10.0.22000.613
Microsoft Windows 10 Version 21H2
- affected: 10.0.19043.0 up to before 10.0.19044.1645
Microsoft Windows 10 Version 1507
- affected: 10.0.10240.0 up to before 10.0.10240.19265
Microsoft Windows 10 Version 1607
- affected: 10.0.14393.0 up to before 10.0.14393.5066
Microsoft Windows Server 2016
- affected: 10.0.14393.0 up to before 10.0.14393.5066
Microsoft Windows Server 2016 (Server Core installation)
- affected: 10.0.14393.0 up to before 10.0.14393.5066
Microsoft Windows 7
- affected: 6.1.0 up to before 6.1.7601.25924
Microsoft Windows 7 Service Pack 1
- affected: 6.1.0 up to before 6.1.7601.25924
Microsoft Windows 8.1
- affected: 6.3.0 up to before 6.3.9600.20337
Microsoft Windows Server 2008 Service Pack 2
- affected: 6.0.6003.0 up to before 6.0.6003.21446
Microsoft Windows Server 2008 Service Pack 2 (Server Core installation)
- affected: 6.0.6003.0 up to before 6.0.6003.21446
Microsoft Windows Server 2008 Service Pack 2
- affected: 6.0.6003.0 up to before 6.0.6003.21446
Microsoft Windows Server 2008 R2 Service Pack 1
- affected: 6.1.7601.0 up to before 6.1.7601.25924
Microsoft Windows Server 2008 R2 Service Pack 1 (Server Core installation)
- affected: 6.1.7601.0 up to before 6.1.7601.25924
Microsoft Windows Server 2012
- affected: 6.2.9200.0 up to before 6.2.9200.23679
Microsoft Windows Server 2012 (Server Core installation)
- affected: 6.2.9200.0 up to before 6.2.9200.23679
Microsoft Windows Server 2012 R2
- affected: 6.3.9600.0 up to before 6.3.9600.20337
Microsoft Windows Server 2012 R2 (Server Core installation)
- affected: 6.3.9600.0 up to before 6.3.9600.20337

References

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

Remote Procedure Call Runtime Remote Code Execution Vulnerability (msrc.microsoft.com)vendor-advisory

Timeline

ID reservedMar 9, 2022
Record publishedApr 15, 2022
Record last updatedJan 2, 2025

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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