OnlyPatch
Windows NTLM

CVE-2024-43451 — NTLM Hash Disclosure Spoofing Vulnerability

Important CVSS 6.5 EPSS 0.81817 ⚠️ Exploited in the wild 📢 Publicly disclosed 2024-11 archive

Executive Summary

None

Overview

6.5
CVSS MEDIUM
Important
MS Severity
Exploited
MS Exploit Status
Exploitation Detected
MS Exploit Likelihood
Category Spoofing
Weakness CWE-73: External Control of File Name or Path
Released Nov 12 2024
Last Updated Nov 12 2024
Publicly Disclosed Yes
CISA KEV Not Listed
Known Exploits None Known
EPSS Score 0.81817 — 0.9961 percentile
NVD CVSS 6.5 MEDIUM — matches MSRC

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N/E:F/RL:O/RC:C
ATTACK VECTOR
Network
ATTACK COMPLEXITY
Low
PRIVILEGES REQUIRED
None
USER INTERACTION
Required
SCOPE
Unchanged
CONFIDENTIALITY
High
INTEGRITY
None
AVAILABILITY
None
EXPLOIT CODE MATURITY
Functional
REMEDIATION LEVEL
Official Fix
REPORT CONFIDENCE
Confirmed
Temporal Score: 6.0

EPSS Score

0.81817
probability of exploitation in the next 30 days
0.9961 percentile - updated 2026-07-25
View on FIRST.org

Affected Products

21 affected products
Product KB Article Severity Impact Restart Required
Windows 10 for 32-bit Systems 5046665 (Security Update) Important Spoofing Yes
Windows 10 for x64-based Systems 5046665 (Security Update) Important Spoofing Yes
Windows 10 Version 1607 for 32-bit Systems 5046612 (Security Update) Important Spoofing Yes
Windows 10 Version 1607 for x64-based Systems 5046612 (Security Update) Important Spoofing Yes
Windows 10 Version 1809 for 32-bit Systems 5046615 (Security Update) Important Spoofing Yes
Windows 10 Version 1809 for x64-based Systems 5046615 (Security Update) Important Spoofing Yes
Windows 10 Version 21H2 for 32-bit Systems 5046613 (Security Update) Important Spoofing Yes
Windows 10 Version 21H2 for ARM64-based Systems 5046613 (Security Update) Important Spoofing Yes
Windows 10 Version 21H2 for x64-based Systems 5046613 (Security Update) Important Spoofing Yes
Windows 10 Version 22H2 for 32-bit Systems 5046613 (Security Update) Important Spoofing Yes
Windows 10 Version 22H2 for ARM64-based Systems 5046613 (Security Update) Important Spoofing Yes
Windows 10 Version 22H2 for x64-based Systems 5046613 (Security Update) Important Spoofing Yes
Windows 11 Version 22H2 for ARM64-based Systems 5046633 (Security Update) Important Spoofing Yes
Windows 11 Version 22H2 for x64-based Systems 5046633 (Security Update) Important Spoofing Yes
Windows 11 Version 23H2 for ARM64-based Systems 5046633 (Security Update) Important Spoofing Yes
Windows 11 Version 23H2 for x64-based Systems 5046633 (Security Update) Important Spoofing Yes
Windows 11 Version 24H2 for ARM64-based Systems 5046696 (SecurityHotpatchUpdate) 5046617 (Security Update) Important Spoofing 5044284 Base: 6.5 Temporal: 6.0 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N/E:F/RL:O/RC:C 10.0.26100.2240 10.0.26100.2314 Yes None Windows 11 Version 24H2 for x64-based Systems 5046696 (SecurityHotpatchUpdate) 5046617 (Security Update) Important Spoofing 5044284 Base: 6.5 Temporal: 6.0 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N/E:F/RL:O/RC:C 10.0.26100.2240 10.0.26100.2314 Yes None Windows Server 2008 for 32-bit Systems Service Pack 2 5046661 (Monthly Rollup) 5046639 (Security Only) 5046630 (IE Cumulative) Important Spoofing 5044320 Base: 6.5 Temporal: 6.0 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N/E:F/RL:O/RC:C 6.0.6003.22966 1.001 Yes None Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) 5046661 (Monthly Rollup) 5046639 (Security Only) 5046630 (IE Cumulative) Important Spoofing 5044320 Base: 6.5 Temporal: 6.0 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N/E:F/RL:O/RC:C 6.0.6003.22966 1.001 Yes None Windows Server 2008 for x64-based Systems Service Pack 2 5046661 (Monthly Rollup) 5046639 (Security Only) 5046630 (IE Cumulative) Important Spoofing 5044320 Base: 6.5 Temporal: 6.0 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N/E:F/RL:O/RC:C 6.0.6003.22966 1.001 Yes None Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) 5046661 (Monthly Rollup) 5046639 (Security Only) 5046630 (IE Cumulative) Important Spoofing 5044320 Base: 6.5 Temporal: 6.0 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N/E:F/RL:O/RC:C 6.0.6003.22966 1.001 Yes None Windows Server 2008 R2 for x64-based Systems Service Pack 1 5046630 (IE Cumulative) 5046687 (Monthly Rollup) 5046705 (Security Only) Important Spoofing 5044356 Base: 6.5 Temporal: 6.0 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N/E:F/RL:O/RC:C 1.001 6.1.7601.27415 Yes None Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) 5046630 (IE Cumulative) 5046687 (Monthly Rollup) 5046705 (Security Only) Important Spoofing 5044356 Base: 6.5 Temporal: 6.0 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N/E:F/RL:O/RC:C 1.001 6.1.7601.27415 Yes None Windows Server 2012 R2 5046630 (IE Cumulative) 5046682 (Monthly Rollup) Important Spoofing 5044343 Base: 6.5 Temporal: 6.0 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N/E:F/RL:O/RC:C 1.001 6.3.9600.22267 Yes None Windows Server 2012 R2 (Server Core installation) 5046630 (IE Cumulative) 5046682 (Monthly Rollup) Important Spoofing 5044343 Base: 6.5 Temporal: 6.0 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N/E:F/RL:O/RC:C 1.001 6.3.9600.22267 Yes None Windows Server 2016 5046612 (Security Update) Important Spoofing Yes
Windows Server 2016 (Server Core installation) 5046612 (Security Update) Important Spoofing Yes
Windows Server 2019 5046615 (Security Update) Important Spoofing Yes
Windows Server 2019 (Server Core installation) 5046615 (Security Update) Important Spoofing Yes
Windows Server 2022 5046616 (Security Update) 5046698 (SecurityHotpatchUpdate) Important Spoofing 5044281 Base: 6.5 Temporal: 6.0 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N/E:F/RL:O/RC:C 10.0.20348.2849 10.0.20348.2819 Yes None Windows Server 2022 (Server Core installation) 5046616 (Security Update) 5046698 (SecurityHotpatchUpdate) Important Spoofing 5044281 Base: 6.5 Temporal: 6.0 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N/E:F/RL:O/RC:C 10.0.20348.2849 10.0.20348.2819 Yes None Windows Server 2022, 23H2 Edition (Server Core installation) 5046618 (Security Update) Important Spoofing Yes

Patches

6 patches
Article Type Restart
5046665 Security Update Yes
5046612 Security Update Yes
5046615 Security Update Yes
5046613 Security Update Yes
5046633 Security Update Yes
5046618 Security Update Yes

Known Exploits

Acknowledgments

Israel Yeshurun

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