Description
Windows Lightweight Directory Access Protocol (LDAP) Denial of Service Vulnerability
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Microsoft | Windows 10 Version 1507 | 10.0.10240.0 – < 10.0.10240.20857 | 10.0.10240.20857 |
| Microsoft | Windows 10 Version 1607 | 10.0.14393.0 – < 10.0.14393.7606 | 10.0.14393.7606 |
| Microsoft | Windows 10 Version 1809 | 10.0.17763.0 – < 10.0.17763.6659 | 10.0.17763.6659 |
| Microsoft | Windows 10 Version 21H2 | 10.0.19043.0 – < 10.0.19044.5247 | 10.0.19044.5247 |
| Microsoft | Windows 10 Version 22H2 | 10.0.19045.0 – < 10.0.19045.5247 | 10.0.19045.5247 |
| Microsoft | Windows 11 version 22H2 | 10.0.22621.0 – < 10.0.22621.4602 | 10.0.22621.4602 |
| Microsoft | Windows 11 version 22H3 | 10.0.22631.0 – < 10.0.22631.4602 | 10.0.22631.4602 |
| Microsoft | Windows 11 Version 23H2 | 10.0.22631.0 – < 10.0.22631.4602 | 10.0.22631.4602 |
| Microsoft | Windows 11 Version 24H2 | 10.0.26100.0 – < 10.0.26100.2605 | 10.0.26100.2605 |
| Microsoft | Windows Server 2008 Service Pack 2 | 6.0.6003.0 – < 6.0.6003.23016 | 6.0.6003.23016 |
| Microsoft | Windows Server 2008 R2 Service Pack 1 | 6.1.7601.0 – < 6.1.7601.27467 | 6.1.7601.27467 |
| Microsoft | Windows Server 2008 R2 Service Pack 1 (Server Core installation) | 6.1.7601.0 – < 6.1.7601.27467 | 6.1.7601.27467 |
| Microsoft | Windows Server 2008 Service Pack 2 | 6.0.6003.0 – < 6.0.6003.23016 | 6.0.6003.23016 |
| Microsoft | Windows Server 2008 Service Pack 2 (Server Core installation) | 6.0.6003.0 – < 6.0.6003.23016 | 6.0.6003.23016 |
| Microsoft | Windows Server 2012 | 6.2.9200.0 – < 6.2.9200.25222 | 6.2.9200.25222 |
| Microsoft | Windows Server 2012 (Server Core installation) | 6.2.9200.0 – < 6.2.9200.25222 | 6.2.9200.25222 |
| Microsoft | Windows Server 2012 R2 | 6.3.9600.0 – < 6.3.9600.22318 | 6.3.9600.22318 |
| Microsoft | Windows Server 2012 R2 (Server Core installation) | 6.3.9600.0 – < 6.3.9600.22318 | 6.3.9600.22318 |
| Microsoft | Windows Server 2016 | 10.0.14393.0 – < 10.0.14393.7606 | 10.0.14393.7606 |
| Microsoft | Windows Server 2016 (Server Core installation) | 10.0.14393.0 – < 10.0.14393.7606 | 10.0.14393.7606 |
| Microsoft | Windows Server 2019 | 10.0.17763.0 – < 10.0.17763.6659 | 10.0.17763.6659 |
| Microsoft | Windows Server 2019 (Server Core installation) | 10.0.17763.0 – < 10.0.17763.6659 | 10.0.17763.6659 |
| Microsoft | Windows Server 2022 | 10.0.20348.0 – < 10.0.20348.2966 | 10.0.20348.2966 |
| Microsoft | Windows Server 2022, 23H2 Edition (Server Core installation) | 10.0.25398.0 – < 10.0.25398.1308 | 10.0.25398.1308 |
| Microsoft | Windows Server 2025 | 10.0.26100.0 – < 10.0.26100.2605 | 10.0.26100.2605 |
| Microsoft | Windows Server 2025 (Server Core installation) | 10.0.26100.0 – < 10.0.26100.2605 | 10.0.26100.2605 |
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.
GitHub 6 repositories
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SafeBreach-Labs/CVE-2024-49113 ★ 516 · Jan 1, 2025
LdapNightmare is a PoC tool that tests a vulnerable Windows Server against CVE-2024-49113
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barcrange/CVE-2024-49113-Checker ★ 10 · Jan 3, 2025
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Sachinart/CVE-2024-49113-Checker ★ 3 · Jan 6, 2025
Hi, This is to check targets vulnerable for CVE-2024-49113 in bulk, faster.
-
alphatin123/CVE-2024-49113 ★ 1 · Apr 30, 2026
FYP: Reproduced CVE-2024-49113 PoC on Windows Server 2019 (ref. SafeBreach); assessed Windows EDR detection gaps and produced ISO 27001-aligned remediation report.
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razureink/cve-2024-49113-ldap_nightmare_reproduction ★ 0 · Jul 24, 2026
Reproduction of cve-2024-49113-ldap_nightmare_reproduction
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0xMetr0/metasploit-ldapnightmare ★ 0 · Feb 15, 2025
SafeBreaches CVE-2024-49113 POC(LdapNightmare) Integrated into Metasploit
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
Advisories 3
- WID-SEC-2024-3657 Microsoft Windows: Mehrere Schwachstellen BSI CERT-Bund (WID) · Jan 28, 2025
- NCSC-2024-0470 Kwetsbaarheden verholpen in Microsoft Windows NCSC-NL (Netherlands) · Jan 6, 2025
- MSRC-CVE-2024-49113 Windows Lightweight Directory Access Protocol (LDAP) Denial of Service Vulnerability Microsoft Security Response Center · Dec 10, 2024
References
- Windows Lightweight Directory Access Protocol (LDAP) Denial of Service Vulnerability vendor-advisory patch