OnlyFm252
Windows Remote Procedure Call

CVE-2023-21708 — Remote Procedure Call Runtime Remote Code Execution Vulnerability

Critical CVSS 9.8 EPSS 0.01486 2023-03 archive

Executive Summary

None

Overview

9.8
CVSS CRITICAL
Critical
MS Severity
Not Exploited
MS Exploit Status
Less Likely
MS Exploit Likelihood
Category Remote Code Execution
Released Mar 14 2023
Last Updated Mar 14 2023
Publicly Disclosed No
CISA KEV Not Listed
Known Exploits None Known
EPSS Score 0.01486 — 0.70652 percentile
NVD CVSS 9.8 CRITICAL — matches MSRC

CVSS Vector

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
ATTACK COMPLEXITY
Low
PRIVILEGES REQUIRED
None
USER INTERACTION
None
SCOPE
Unchanged
CONFIDENTIALITY
High
INTEGRITY
High
AVAILABILITY
High
EXPLOIT CODE MATURITY
Unproven
REMEDIATION LEVEL
Official Fix
REPORT CONFIDENCE
Confirmed
Temporal Score: 8.5

EPSS Score

0.01486
probability of exploitation in the next 30 days
0.70652 percentile - updated 2026-06-21
View on FIRST.org

Affected Products

23 affected products
Product KB Article Severity Impact Restart Required
Windows 10 for 32-bit Systems 5023713 (Security Update) Critical Remote Code Execution Yes
Windows 10 for x64-based Systems 5023713 (Security Update) Critical Remote Code Execution Yes
Windows 10 Version 1607 for 32-bit Systems 5023697 (Security Update) Critical Remote Code Execution Yes
Windows 10 Version 1607 for x64-based Systems 5023697 (Security Update) Critical Remote Code Execution Yes
Windows 10 Version 1809 for 32-bit Systems 5023702 (Security Update) Critical Remote Code Execution Yes
Windows 10 Version 1809 for ARM64-based Systems 5023702 (Security Update) Critical Remote Code Execution Yes
Windows 10 Version 1809 for x64-based Systems 5023702 (Security Update) Critical Remote Code Execution Yes
Windows 10 Version 20H2 for 32-bit Systems 5023696 (Security Update) Critical Remote Code Execution Yes
Windows 10 Version 20H2 for ARM64-based Systems 5023696 (Security Update) Critical Remote Code Execution Yes
Windows 10 Version 21H2 for 32-bit Systems 5023696 (Security Update) Critical Remote Code Execution Yes
Windows 10 Version 21H2 for ARM64-based Systems 5023696 (Security Update) Critical Remote Code Execution Yes
Windows 10 Version 21H2 for x64-based Systems 5023696 (Security Update) Critical Remote Code Execution Yes
Windows 10 Version 22H2 for 32-bit Systems 5023696 (Security Update) Critical Remote Code Execution Yes
Windows 10 Version 22H2 for ARM64-based Systems 5023696 (Security Update) Critical Remote Code Execution Yes
Windows 10 Version 22H2 for x64-based Systems 5023696 (Security Update) Critical Remote Code Execution Yes
Windows 11 version 21H2 for ARM64-based Systems 5023698 (Security Update) Critical Remote Code Execution Yes
Windows 11 version 21H2 for x64-based Systems 5023698 (Security Update) Critical Remote Code Execution Yes
Windows 11 Version 22H2 for ARM64-based Systems 5023706 (Security Update) Critical Remote Code Execution Yes
Windows 11 Version 22H2 for x64-based Systems 5023706 (Security Update) Critical Remote Code Execution Yes
Windows Server 2008 for 32-bit Systems Service Pack 2 5023755 (Monthly Rollup) 5023754 (Security Only) Critical Remote Code Execution 5022890 Base: 9.8 Temporal: 8.5 Vector: 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 6.0.6003.21966 Yes 5023755 5023754 Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) 5023755 (Monthly Rollup) 5023754 (Security Only) Critical Remote Code Execution 5022890 Base: 9.8 Temporal: 8.5 Vector: 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 6.0.6003.21966 Yes 5023755 5023754 Windows Server 2008 for x64-based Systems Service Pack 2 5023755 (Monthly Rollup) 5023754 (Security Only) Critical Remote Code Execution 5022890 Base: 9.8 Temporal: 8.5 Vector: 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 6.0.6003.21966 Yes 5023755 5023754 Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) 5023755 (Monthly Rollup) 5023754 (Security Only) Critical Remote Code Execution 5022890 Base: 9.8 Temporal: 8.5 Vector: 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 6.0.6003.21966 Yes 5023755 5023754 Windows Server 2008 R2 for x64-based Systems Service Pack 1 5023769 (Monthly Rollup) 5023759 (Security Only) Critical Remote Code Execution 5022874 Base: 9.8 Temporal: 8.5 Vector: 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 6.1.7601.26415 Yes 5023769 5023759 Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) 5023769 (Monthly Rollup) 5023759 (Security Only) Critical Remote Code Execution 5022874 Base: 9.8 Temporal: 8.5 Vector: 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 6.1.7601.26415 Yes 5023769 5023759 Windows Server 2012 5023756 (Monthly Rollup) 5023752 (Security Only) Critical Remote Code Execution 5022903 Base: 9.8 Temporal: 8.5 Vector: 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 6.2.9200.24168 Yes 5023756 5023752 Windows Server 2012 (Server Core installation) 5023756 (Monthly Rollup) 5023752 (Security Only) Critical Remote Code Execution 5022903 Base: 9.8 Temporal: 8.5 Vector: 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 6.2.9200.24168 Yes 5023756 5023752 Windows Server 2012 R2 5023765 (Monthly Rollup) 5023764 (Security Only) Critical Remote Code Execution 5022899 Base: 9.8 Temporal: 8.5 Vector: 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 6.3.9600.20865 Yes None Windows Server 2012 R2 (Server Core installation) 5023765 (Monthly Rollup) 5023764 (Security Only) Critical Remote Code Execution 5022899 Base: 9.8 Temporal: 8.5 Vector: 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 6.3.9600.20865 Yes None Windows Server 2016 5023697 (Security Update) Critical Remote Code Execution Yes
Windows Server 2016 (Server Core installation) 5023697 (Security Update) Critical Remote Code Execution Yes
Windows Server 2019 5023702 (Security Update) Critical Remote Code Execution Yes
Windows Server 2019 (Server Core installation) 5023702 (Security Update) Critical Remote Code Execution Yes

Patches

6 patches
Article Type Restart
5023713 Security Update Yes
5023697 Security Update Yes
5023702 Security Update Yes
5023696 Security Update Yes
5023698 Security Update Yes
5023706 Security Update Yes

Known Exploits

Acknowledgments

None

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