CVE-2023-21695
📛 CVE Title
Microsoft Protected Extensible Authentication Protocol (PEAP) Remote Code Execution Vulnerability
Description
Microsoft Protected Extensible Authentication Protocol (PEAP) Remote Code Execution Vulnerability
Overview
- State
- PUBLISHED
- Assigner (CNA)
- microsoft
- CVSS severity
- HIGH
- CVSS score
- 7.5 / 10
- CVSS 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- Effective score
- 7.5 / 10 HIGH source: CNA overview
- MSRC score
- 7.5 / 10 HIGH MS rating: Important · Remote Code Execution
- CWE(s)
-
CWE-122 - Reserved
- 2022-12-13
- Published
- 2023-02-14 08:00 UTC
- Last updated
- 2023-02-14 08:00 UTC
- Source
- https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2023/21xxx/CVE-2023-21695.json
- Linked Threat
- CVE-2023-21695 — Microsoft Protected Extensible Authentication Protocol (PEAP) Remote Code Execution Vulnerability
European Union Vulnerability Database ENISA EUVD
ENISA's official EU repository for curated vulnerability intelligence. Carries a separate identifier (EUVD-YYYY-NNNN) and frequently exposes an earlier-published description + CVSS than NVD does.
- EUVD ID
-
EUVD-2023-25862 - Assigner
- microsoft
- Published
- Feb 14, 2023, 7:33:35 PM
- Updated
- Jan 1, 2025, 12:41:13 AM
- EUVD base score (CVSS 3.1)
-
7.5 / 10
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 - EUVD-reported EPSS
- 4.7800
- Vendors
- Microsoft
- Products
-
Windows 10 Version 21H2 (10.0.19043.0 <10.0.19044.2604)Windows 10 Version 20H2 (10.0.0 <10.0.19042.2604)Windows 10 Version 1607 (10.0.14393.0 <10.0.14393.5717)Windows Server 2008 R2 Service Pack 1 (6.1.7601.0 <6.1.7601.26366)Windows Server 2012 R2 (Server Core installation) (6.3.9600.0 <6.3.9600.20821)Windows 11 version 21H2 (10.0.0 <10.0.22621.1574)Windows Server 2019 (Server Core installation) (10.0.17763.0 <10.0.17763.4010)Windows Server 2016 (Server Core installation) (10.0.14393.0 <10.0.14393.5717)Windows Server 2012 R2 (6.3.9600.0 <6.3.9600.20821)Windows Server 2012 (6.2.9200.0 <6.2.9200.24116)Windows 10 Version 1507 (10.0.10240.0 <10.0.10240.19747)Windows 10 Version 22H2 (10.0.19045.0 <10.0.19045.2604)Windows Server 2008 Service Pack 2 (Server Core installation) (6.0.6003.0 <6.0.6003.21915)Windows Server 2022 (10.0.20348.0 <10.0.20348.1547)Windows Server 2016 (10.0.14393.0 <10.0.14393.5717)Windows Server 2019 (10.0.17763.0 <10.0.17763.4010)Windows 10 Version 1809 (10.0.17763.0 <10.0.17763.4010)Windows Server 2008 Service Pack 2 (6.0.6003.0 <6.0.6003.21915)Windows Server 2012 (Server Core installation) (6.2.9200.0 <6.2.9200.24116)Windows Server 2008 Service Pack 2 (6.0.6003.0 <6.0.6003.21915)Windows 10 Version 1809 (10.0.0 <10.0.17763.4010)Windows Server 2008 R2 Service Pack 1 (Server Core installation) (6.1.7601.0 <6.1.7601.26366)Windows 11 version 22H2 (10.0.22621.0 <10.0.22621.1265)
- Aliases
-
GHSA-869x-6wgw-grqg
ENISA description: Microsoft Protected Extensible Authentication Protocol (PEAP) Remote Code Execution Vulnerability
EUVD references (1)
Microsoft Security Response Center MSRC
Microsoft's vendor-authoritative record from the Security Update Guide — its own CVSS score, impact, severity rating, exploit assessment, and KB-article fixes. Refreshed 2026-08-11 01:49 UTC (source: CVRF).
- MS severity
- Important
- Impact
- Remote Code Execution
- MS CVSS base score
- 7.5 / 10 (temporal 6.5)
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 - Exploit assessment
- Publicly Disclosed:No;Exploited:No;Latest Software Release:Exploitation Less Likely;DOS:N/A
- Release
- 2023-Feb
Microsoft remediations / KB articles (28)
- 5022840 — Vendor Fix / Security Update (fixed build 10.0.17763.4010)
- 5022840 — Update
- 5022842 — Vendor Fix / Security Update (fixed build 10.0.20348.1547)
- 5022842 — Update
- 5022921 — Vendor Fix / Security Hotpatch Update (fixed build 10.0.20348.1540)
- 5022834 — Vendor Fix / Security Update (fixed build 10.0.19042.2604)
- 5022834 — Update
- 5022836 — Vendor Fix / Security Update (fixed build 10.0.22621.1574)
- 5022845 — Vendor Fix / Security Update (fixed build 10.0.22621.1265)
- 5022845 — Update
- 5022858 — Vendor Fix / Security Update (fixed build 10.0.10240.19747)
- 5022838 — Vendor Fix / Security Update (fixed build 10.0.14393.5717)
- 5022890 — Vendor Fix / Monthly Rollup (fixed build 6.0.6003.21915)
- 5022890 — Update
- 5022893 — Vendor Fix / Security Only (fixed build 6.0.6003.21915)
- 5022893 — Update
- 5022872 — Vendor Fix / Monthly Rollup (fixed build 6.1.7601.26366)
- 5022872 — Update
- 5022874 — Vendor Fix / Security Only (fixed build 6.1.7601.26366)
- 5022874 — Update
- 5022903 — Vendor Fix / Monthly Rollup (fixed build 6.2.9200.24116)
- 5022903 — Update
- 5022895 — Vendor Fix / Security Only (fixed build 6.2.9200.24116)
- 5022895 — Update
- 5022899 — Vendor Fix / Monthly Rollup (fixed build 6.3.9600.20821)
- 5022899 — Update
- 5022894 — Vendor Fix / Security Only (fixed build 6.3.9600.20821)
- 5022894 — Update
Microsoft FAQ (1)
How could an attacker exploit this vulnerability?
An authenticated attacker could attack a Microsoft Protected Extensible Authentication Protocol (PEAP) Server by sending specially crafted malicious PEAP packets over the network.
Affected products (23)
| Vendor | Product | Versions | Platforms |
|---|---|---|---|
| Microsoft | Windows 10 Version 1809 |
10.0.17763.0 (affected)
|
32-bit Systems, x64-based Systems |
| Microsoft | Windows 10 Version 1809 |
10.0.0 (affected)
|
ARM64-based Systems |
| Microsoft | Windows Server 2019 |
10.0.17763.0 (affected)
|
x64-based Systems |
| Microsoft | Windows Server 2019 (Server Core installation) |
10.0.17763.0 (affected)
|
x64-based Systems |
| Microsoft | Windows Server 2022 |
10.0.20348.0 (affected)
|
x64-based Systems |
| Microsoft | Windows 10 Version 20H2 |
10.0.0 (affected)
|
32-bit Systems, ARM64-based Systems |
| Microsoft | Windows 11 version 21H2 |
10.0.0 (affected)
|
x64-based Systems, ARM64-based Systems |
| Microsoft | Windows 10 Version 21H2 |
10.0.19043.0 (affected)
|
32-bit Systems, ARM64-based Systems, x64-based Systems |
| Microsoft | Windows 11 version 22H2 |
10.0.22621.0 (affected)
|
ARM64-based Systems, x64-based Systems |
| Microsoft | Windows 10 Version 22H2 |
10.0.19045.0 (affected)
|
x64-based Systems, ARM64-based Systems, 32-bit Systems |
| Microsoft | Windows 10 Version 1507 |
10.0.10240.0 (affected)
|
32-bit Systems, x64-based Systems |
| Microsoft | Windows 10 Version 1607 |
10.0.14393.0 (affected)
|
32-bit Systems, x64-based Systems |
| Microsoft | Windows Server 2016 |
10.0.14393.0 (affected)
|
x64-based Systems |
| Microsoft | Windows Server 2016 (Server Core installation) |
10.0.14393.0 (affected)
|
x64-based Systems |
| Microsoft | Windows Server 2008 Service Pack 2 |
6.0.6003.0 (affected)
|
32-bit Systems |
| Microsoft | Windows Server 2008 Service Pack 2 (Server Core installation) |
6.0.6003.0 (affected)
|
32-bit Systems, x64-based Systems |
| Microsoft | Windows Server 2008 Service Pack 2 |
6.0.6003.0 (affected)
|
x64-based Systems |
| Microsoft | Windows Server 2008 R2 Service Pack 1 |
6.1.7601.0 (affected)
|
x64-based Systems |
| Microsoft | Windows Server 2008 R2 Service Pack 1 (Server Core installation) |
6.1.7601.0 (affected)
|
x64-based Systems |
| Microsoft | Windows Server 2012 |
6.2.9200.0 (affected)
|
x64-based Systems |
| Microsoft | Windows Server 2012 (Server Core installation) |
6.2.9200.0 (affected)
|
x64-based Systems |
| Microsoft | Windows Server 2012 R2 |
6.3.9600.0 (affected)
|
x64-based Systems |
| Microsoft | Windows Server 2012 R2 (Server Core installation) |
6.3.9600.0 (affected)
|
x64-based Systems |
Vendor references (1)
References embedded in the original CVE record by the assigning CNA.
Web references (28)
DuckDuckGo results ranked by threat-intel / vendor advisory domains. Generated by the 🔎 Find references (web) button above — same flow as the Remediations search.
- 5022834 msrc
- 5022836 msrc
- 5022838 msrc
- 5022840 msrc
- 5022842 msrc
- 5022845 msrc
- 5022858 msrc
- 5022872 msrc
- 5022874 msrc
- 5022890 msrc
- 5022893 msrc
- 5022894 msrc
- 5022895 msrc
- 5022899 msrc
- 5022903 msrc
- MSRC update guide: CVE-2023-21695 msrc
- 5022834 msrc
- 5022840 msrc
- 5022842 msrc
- 5022845 msrc
- 5022872 msrc
- 5022874 msrc
- 5022890 msrc
- 5022893 msrc
- 5022894 msrc
- 5022895 msrc
- 5022899 msrc
- 5022903 msrc
Remediations (17)
Remediations are stored against the linked Threat row; the list below is deduplicated across both pages.
-
web:www.rapid7.com
Microsoft is publishing 66 new vulnerabilities today, which is far fewer than we've come to expect in recent months. However, the lone zero-day vulnerability this month demands attention.
2026-06-04 05:43 UTC -
web:krebsonsecurity.com
Microsoft Corp. today issued security updates to fix more than 80 vulnerabilities in its Windows operating systems and software. There are no known "zero-day" or actively exploited vulnerabilities ...
2026-06-04 05:43 UTC -
web:www.helpnetsecurity.com
September 2025 Patch Tuesday is now live: Microsoft, Adobe, SAP deliver critical fixes for September 2025 Patch Tuesday We work in an industry driven by Common Vulnerabilities and Exposures ( CVE ).
2026-06-04 05:43 UTC -
web:www.manageengine.com
Unfold what this Patch Tuesday has in store for you Patch Tuesday, the unofficial term for Microsoft's scheduled security fix release on every second Tuesday of a month, has been a constant topic of discussion ever since its inception. Upcoming Webinar May 14,2026 11:30 EDT & 6:30 a.m. GMT Agenda of the Free Patch Tuesday webinar A complete breakdown of all the latest Patch Tuesday updates ...
2026-06-04 05:43 UTC -
web:www.neowin.net
Microsoft has released Patch Tuesday updates for Windows 11 (KB5066835, KB5066793) for August 2025. Here's what's included.
2026-06-04 05:43 UTC -
web:www.ninjaone.com
Overview KB5089549 is a cumulative security update released on May 12, 2026, for Windows 11 versions 25H2 and 24H2. This update consolidates the latest security patches and quality improvements, incorporating enhancements from previous optional preview releases from April 2026. The update addresses multiple security vulnerabilities while introducing infrastructure improvements for device ...
2026-06-04 05:43 UTC -
web:blog.toolslib.net
Microsoft's December Patch Tuesday 2025 delivers Windows 11 improvements, AI upgrades, an essential Servicing Stack update, and a silent fix for the long-exploited LNK shortcut flaw. Learn what's new and what to update safely.
2026-06-04 05:43 UTC -
web:www.forbes.com
Microsoft starts expiring critical Secure Boot certificates in just 2 weeks.
2026-05-22 05:45 UTC -
web:www.oracle.com
This Critical Patch Update contains 481 new security patches across the product families listed below. Please note that an MOS note summarizing the content of this Critical Patch Update and other Oracle Software Security Assurance activities is located at April 2026 Critical Patch Update: Executive Summary and Analysis.
2026-05-22 05:45 UTC -
web:www.lansweeper.com
Which vulnerabilities, issues, and other things did Microsoft update? Discover what's new using Lansweeper's Patch Tuesday November 2025 summary.
2026-05-22 05:45 UTC -
web:www.maketecheasier.com
Check out the latest Windows 11 and Windows 10 update problems and their solutions, as recommended by Microsoft experts.
2026-05-22 05:45 UTC -
web:cybersecuritynews.com
Microsoft's May 2026 Patch Tuesday lands with a heavy enterprise focus, fixing 120 vulnerabilities across Windows, Office, Azure, developer tools, and Microsoft 365 apps, including 29 remote code execution (RCE) flaws rated Critical.
2026-05-22 05:45 UTC -
web:github.com
Patch termsrv.dll so that multiple remote users can open an RDP session on a non-Windows Server computer - fabianosrc/TermsrvPatcher
2026-05-22 05:45 UTC -
web:www.pcworld.com
This month's Patch Tuesday includes an actively exploited Office zero-day vulnerability and several critical RCE bugs in Windows and Remote Desktop.
2026-05-22 05:45 UTC -
web:portal.msrc.microsoft.com
The Security Update Guide provides information on the latest Microsoft security updates, helping users understand and address potential vulnerabilities effectively.
2026-05-22 05:45 UTC -
web:www.computerworld.com
Each month, the team at Readiness analyzes the latest Patch Tuesday updates from Microsoft and provides detailed, actionable testing guidance. The company's Patch Tuesday release for February ...
2026-05-22 05:45 UTC -
web:www.crowdstrike.com
Microsoft has released security updates for 63 vulnerabilities, including 1 zero-day and 4 critical vulnerabilities, in its November 2025 Patch Tuesday rollout.
2026-05-22 05:45 UTC
AI Forensic Analysis
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Raw JSON
The full cvelistV5 record. Download as CVE-2023-21695.json.
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