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Windows Protected EAP (PEAP)

CVE-2023-21695 — Microsoft Protected Extensible Authentication Protocol (PEAP) Remote Code Execution Vulnerability

Important CVSS 8.8 EPSS 0.01048 2023-02 archive

Executive Summary

None

Overview

8.8
CVSS HIGH
Important
MS Severity
Not Exploited
MS Exploit Status
Less Likely
MS Exploit Likelihood
Category Remote Code Execution
Released Feb 14 2023
Last Updated Feb 14 2023
Publicly Disclosed No
CISA KEV Not Listed
Known Exploits None Known
EPSS Score 0.01048 — 0.59743 percentile
NVD CVSS 8.8 HIGH — differs from MSRC

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
ATTACK VECTOR
Network
ATTACK COMPLEXITY
Low
PRIVILEGES REQUIRED
Low
USER INTERACTION
None
SCOPE
Unchanged
CONFIDENTIALITY
High
INTEGRITY
High
AVAILABILITY
High
EXPLOIT CODE MATURITY
Unproven
REMEDIATION LEVEL
Official Fix
REPORT CONFIDENCE
Confirmed
Temporal Score: 6.5

EPSS Score

0.01048
probability of exploitation in the next 30 days
0.59743 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 5022858 (Security Update) Important Remote Code Execution Yes
Windows 10 for x64-based Systems 5022858 (Security Update) Important Remote Code Execution Yes
Windows 10 Version 1607 for 32-bit Systems 5022838 (Security Update) Important Remote Code Execution Yes
Windows 10 Version 1607 for x64-based Systems 5022838 (Security Update) Important Remote Code Execution Yes
Windows 10 Version 1809 for 32-bit Systems 5022840 (Security Update) Important Remote Code Execution Yes
Windows 10 Version 1809 for ARM64-based Systems 5022840 (Security Update) Important Remote Code Execution Yes
Windows 10 Version 1809 for x64-based Systems 5022840 (Security Update) Important Remote Code Execution Yes
Windows 10 Version 20H2 for 32-bit Systems 5022834 (Security Update) Important Remote Code Execution Yes
Windows 10 Version 20H2 for ARM64-based Systems 5022834 (Security Update) Important Remote Code Execution Yes
Windows 10 Version 21H2 for 32-bit Systems 5022834 (Security Update) Important Remote Code Execution Yes
Windows 10 Version 21H2 for ARM64-based Systems 5022834 (Security Update) Important Remote Code Execution Yes
Windows 10 Version 21H2 for x64-based Systems 5022834 (Security Update) Important Remote Code Execution Yes
Windows 10 Version 22H2 for 32-bit Systems 5022834 (Security Update) Important Remote Code Execution Yes
Windows 10 Version 22H2 for ARM64-based Systems 5022834 (Security Update) Important Remote Code Execution Yes
Windows 10 Version 22H2 for x64-based Systems 5022834 (Security Update) Important Remote Code Execution Yes
Windows 11 version 21H2 for ARM64-based Systems 5022836 (Security Update) Important Remote Code Execution Yes
Windows 11 version 21H2 for x64-based Systems 5022836 (Security Update) Important Remote Code Execution Yes
Windows 11 Version 22H2 for ARM64-based Systems 5022845 (Security Update) Important Remote Code Execution Yes
Windows 11 Version 22H2 for x64-based Systems 5022845 (Security Update) Important Remote Code Execution Yes
Windows Server 2008 for 32-bit Systems Service Pack 2 5022890 (Monthly Rollup) 5022893 (Security Only) Important Remote Code Execution 5022340 Base: 7.5 Temporal: 6.5 Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C 6.0.6003.21915 Yes 5022890 5022893 Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) 5022890 (Monthly Rollup) 5022893 (Security Only) Important Remote Code Execution 5022340 Base: 7.5 Temporal: 6.5 Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C 6.0.6003.21915 Yes 5022890 5022893 Windows Server 2008 for x64-based Systems Service Pack 2 5022890 (Monthly Rollup) 5022893 (Security Only) Important Remote Code Execution 5022340 Base: 7.5 Temporal: 6.5 Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C 6.0.6003.21915 Yes 5022890 5022893 Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) 5022890 (Monthly Rollup) 5022893 (Security Only) Important Remote Code Execution 5022340 Base: 7.5 Temporal: 6.5 Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C 6.0.6003.21915 Yes 5022890 5022893 Windows Server 2008 R2 for x64-based Systems Service Pack 1 5022872 (Monthly Rollup) 5022874 (Security Only) Important Remote Code Execution 5022338 Base: 7.5 Temporal: 6.5 Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C 6.1.7601.26366 Yes 5022872 5022874 Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) 5022872 (Monthly Rollup) 5022874 (Security Only) Important Remote Code Execution 5022338 Base: 7.5 Temporal: 6.5 Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C 6.1.7601.26366 Yes 5022872 5022874 Windows Server 2012 5022903 (Monthly Rollup) 5022895 (Security Only) Important Remote Code Execution 5022348 Base: 7.5 Temporal: 6.5 Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C 6.2.9200.24116 Yes 5022903 5022895 Windows Server 2012 (Server Core installation) 5022903 (Monthly Rollup) 5022895 (Security Only) Important Remote Code Execution 5022348 Base: 7.5 Temporal: 6.5 Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C 6.2.9200.24116 Yes 5022903 5022895 Windows Server 2012 R2 5022899 (Monthly Rollup) 5022894 (Security Only) Important Remote Code Execution 5022352 Base: 7.5 Temporal: 6.5 Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C 6.3.9600.20821 Yes 5022899 5022894 Windows Server 2012 R2 (Server Core installation) 5022899 (Monthly Rollup) 5022894 (Security Only) Important Remote Code Execution 5022352 Base: 7.5 Temporal: 6.5 Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C 6.3.9600.20821 Yes 5022899 5022894 Windows Server 2016 5022838 (Security Update) Important Remote Code Execution Yes
Windows Server 2016 (Server Core installation) 5022838 (Security Update) Important Remote Code Execution Yes
Windows Server 2019 5022840 (Security Update) Important Remote Code Execution Yes
Windows Server 2019 (Server Core installation) 5022840 (Security Update) Important Remote Code Execution Yes

Patches

6 patches
Article Type Restart
5022858 Security Update Yes
5022838 Security Update Yes
5022840 Security Update Yes
5022834 Security Update Yes
5022836 Security Update Yes
5022845 Security Update Yes

Known Exploits

On This Page