What’s Vulnerable › Vulnerabilities

CVE-2023-28297: Windows Remote Procedure Call Service (RPCSS) Elevation of Privilege Vulnerability

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.7% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2023-04-11 · updated 2026-06-17
• Weakness: CWE-416

Description

Windows Remote Procedure Call Service (RPCSS) Elevation of Privilege Vulnerability

Affected products

• Microsoft Windows 10 1607: before 10.0.14393.5648 — fixed in 10.0.14393.5648
• Microsoft Windows 10: before 10.0.17763.3887 — fixed in 10.0.17763.3887
• Microsoft Windows 10 20H2: before 10.0.19042.2486 — fixed in 10.0.19042.2486
• Microsoft Windows 10: before 10.0.19044.2486 — fixed in 10.0.19044.2486
• Microsoft Windows 10: before 10.0.19045.2486 — fixed in 10.0.19045.2486
• Microsoft Windows 11: before 10.0.22621.1105 — fixed in 10.0.22621.1105
• Microsoft Windows Server 2012: r2
• Microsoft Windows Server 2016: all versions
• Microsoft Windows Server 2019: all versions
• Microsoft Windows Server 2022: all versions
• Microsoft Windows 10 Version 1507: from 10.0.10240.0 before 10.0.10240.19685 — fixed in 10.0.10240.19685
• Microsoft Windows 10 1607: from 10.0.14393.0 before 10.0.14393.5648 — fixed in 10.0.14393.5648
• Microsoft Windows 10: from 10.0.17763.0 before 10.0.17763.3887 — fixed in 10.0.17763.3887
• Microsoft Windows 10 20H2: from 10.0.0 before 10.0.19042.2486 — fixed in 10.0.19042.2486
• Microsoft Windows 10: from 10.0.19043.0 before 10.0.19044.2486 — fixed in 10.0.19044.2486
• Microsoft Windows 10: from 10.0.19045.0 before 10.0.19045.2486 — fixed in 10.0.19045.2486
• Microsoft Windows 11 21H2: from 10.0.0 before 10.0.22000.1455 — fixed in 10.0.22000.1455
• Microsoft Windows 11: from 10.0.22621.0 before 10.0.22621.1105 — fixed in 10.0.22621.1105
• Microsoft Windows Server 2012: from 6.2.9200.0 before 6.2.9200.24075 — fixed in 6.2.9200.24075
• Microsoft Windows Server 2012 R2: from 6.3.9600.0 before 6.3.9600.20778 — fixed in 6.3.9600.20778
• Microsoft Windows Server 2016: from 10.0.14393.0 before 10.0.14393.5648 — fixed in 10.0.14393.5648
• Microsoft Windows Server 2019: from 10.0.17763.0 before 10.0.17763.3887 — fixed in 10.0.17763.3887
• Microsoft Windows Server 2022: from 10.0.20348.0 before 10.0.20348.1487 — fixed in 10.0.20348.1487

How to fix

Upgrade to a fixed version: Microsoft Windows 10 1607 10.0.14393.5648; Microsoft Windows 10 10.0.17763.3887; Microsoft Windows 10 20H2 10.0.19042.2486; Microsoft Windows 10 10.0.19044.2486; Microsoft Windows 10 10.0.19045.2486; Microsoft Windows 11 10.0.22621.1105; Microsoft Windows 10 Version 1507 10.0.10240.19685; Microsoft Windows 10 1607 10.0.14393.5648; Microsoft Windows 10 10.0.17763.3887; Microsoft Windows 10 20H2 10.0.19042.2486; Microsoft Windows 10 10.0.19044.2486; Microsoft Windows 10 10.0.19045.2486. Check the vendor advisory for mitigations.

References

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-28297
• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-28297

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