CVE-2023-41769 — Layer 2 Tunneling Protocol Remote Code Execution Vulnerability

Executive Summary

None

Overview

8.1

CVSS HIGH

Critical

MS Severity

Not Exploited

MS Exploit Status

Less Likely

MS Exploit Likelihood

Category Remote Code Execution

Released Oct 10 2023

Last Updated Oct 10 2023

Publicly Disclosed No

CISA KEV Not Listed

Known Exploits None Known

EPSS Score 0.01256 — 0.65646 percentile

NVD CVSS 8.1 HIGH — matches MSRC

CVSS Vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C

ATTACK VECTOR

Network

ATTACK COMPLEXITY

High

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: 7.1

EPSS Score

0.01256

probability of exploitation in the next 30 days

0.65646 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	`5031377 (Security Update)`	Critical	Remote Code Execution	Yes
Windows 10 for x64-based Systems	`5031377 (Security Update)`	Critical	Remote Code Execution	Yes
Windows 10 Version 1607 for 32-bit Systems	`5031362 (Security Update)`	Critical	Remote Code Execution	Yes
Windows 10 Version 1607 for x64-based Systems	`5031362 (Security Update)`	Critical	Remote Code Execution	Yes
Windows 10 Version 1809 for 32-bit Systems	`5031361 (Security Update)`	Critical	Remote Code Execution	Yes
Windows 10 Version 1809 for ARM64-based Systems	`5031361 (Security Update)`	Critical	Remote Code Execution	Yes
Windows 10 Version 1809 for x64-based Systems	`5031361 (Security Update)`	Critical	Remote Code Execution	Yes
Windows 10 Version 21H2 for 32-bit Systems	`5031356 (Security Update)`	Critical	Remote Code Execution	Yes
Windows 10 Version 21H2 for ARM64-based Systems	`5031356 (Security Update)`	Critical	Remote Code Execution	Yes
Windows 10 Version 21H2 for x64-based Systems	`5031356 (Security Update)`	Critical	Remote Code Execution	Yes
Windows 10 Version 22H2 for 32-bit Systems	`5031356 (Security Update)`	Critical	Remote Code Execution	Yes
Windows 10 Version 22H2 for ARM64-based Systems	`5031356 (Security Update)`	Critical	Remote Code Execution	Yes
Windows 10 Version 22H2 for x64-based Systems	`5031356 (Security Update)`	Critical	Remote Code Execution	Yes
Windows 11 version 21H2 for ARM64-based Systems	`5031358 (Security Update)`	Critical	Remote Code Execution	Yes
Windows 11 version 21H2 for x64-based Systems	`5031358 (Security Update)`	Critical	Remote Code Execution	Yes
Windows 11 Version 22H2 for ARM64-based Systems	`5031354 (Security Update)`	Critical	Remote Code Execution	Yes
Windows 11 Version 22H2 for x64-based Systems	`5031354 (Security Update)`	Critical	Remote Code Execution	Yes
Windows Server 2008 for 32-bit Systems Service Pack 2 5031416 (Monthly Rollup) 5031411 (Security Only) Critical Remote Code Execution 5030271 Base: 8.1 Temporal: 7.1 Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C 6.0.6003.22317 Yes 5031416 5031411 Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) 5031416 (Monthly Rollup) 5031411 (Security Only) Critical Remote Code Execution 5030271 Base: 8.1 Temporal: 7.1 Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C 6.0.6003.22317 Yes 5031416 5031411 Windows Server 2008 for x64-based Systems Service Pack 2 5031416 (Monthly Rollup) 5031411 (Security Only) Critical Remote Code Execution 5030271 Base: 8.1 Temporal: 7.1 Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C 6.0.6003.22317 Yes 5031416 5031411 Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) 5031416 (Monthly Rollup) 5031411 (Security Only) Critical Remote Code Execution 5030271 Base: 8.1 Temporal: 7.1 Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C 6.0.6003.22317 Yes 5031416 5031411 Windows Server 2008 R2 for x64-based Systems Service Pack 1 5031408 (Monthly Rollup) 5031441 (Security Only) Critical Remote Code Execution 5030265 Base: 8.1 Temporal: 7.1 Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C 6.1.7601.26769 Yes 5031408 5031441 Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) 5031408 (Monthly Rollup) 5031441 (Security Only) Critical Remote Code Execution 5030265 Base: 8.1 Temporal: 7.1 Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C 6.1.7601.26769 Yes 5031408 5031441 Windows Server 2012 5031442 (Monthly Rollup) 5031427 (Security Only) Critical Remote Code Execution 5030278 Base: 8.1 Temporal: 7.1 Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C 6.2.9200.24523 Yes None Windows Server 2012 (Server Core installation) 5031442 (Monthly Rollup) 5031427 (Security Only) Critical Remote Code Execution 5030278 Base: 8.1 Temporal: 7.1 Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C 6.2.9200.24523 Yes None Windows Server 2012 R2 5031419 (Monthly Rollup) 5031407 (Security Only) Critical Remote Code Execution 5030269 Base: 8.1 Temporal: 7.1 Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C 6.3.9600.21620 Yes None Windows Server 2012 R2 (Server Core installation) 5031419 (Monthly Rollup) 5031407 (Security Only) Critical Remote Code Execution 5030269 Base: 8.1 Temporal: 7.1 Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C 6.3.9600.21620 Yes None Windows Server 2016	`5031362 (Security Update)`	Critical	Remote Code Execution	Yes
Windows Server 2016 (Server Core installation)	`5031362 (Security Update)`	Critical	Remote Code Execution	Yes
Windows Server 2019	`5031361 (Security Update)`	Critical	Remote Code Execution	Yes
Windows Server 2019 (Server Core installation)	`5031361 (Security Update)`	Critical	Remote Code Execution	Yes
Windows Server 2022	`5031364 (Security Update)`	Critical	Remote Code Execution	Yes
Windows Server 2022 (Server Core installation)	`5031364 (Security Update)`	Critical	Remote Code Execution	Yes

Patches

7 patches

Article	Type	Restart
`5031377`	Security Update	Yes
`5031362`	Security Update	Yes
`5031361`	Security Update	Yes
`5031356`	Security Update	Yes
`5031358`	Security Update	Yes
`5031354`	Security Update	Yes
`5031364`	Security Update	Yes

Known Exploits

No known exploits have been linked for this CVE yet. When available, exploit references will be sourced from public repositories and may be unverified, incomplete, or non-functional. Always review code carefully before use in any environment.

Acknowledgments

Microsoft’s Windows Servicing and Delivery Group – Network Security and Containers (NSC) Team

References

MSRC Advisory MITRE NVD