Domain takeover via anonymous LSARPC authentication coercion
Published May 10, 2022 · Updated Oct 21, 2025
Spoofing in Microsoft Windows LSA allows remote attackers to coerce a domain controller into NTLM authentication through LSARPC. An anonymously callable LSARPC method accepts an attacker-controlled network path and initiates outbound NTLM authentication to that destination. Network access to LSARPC is sufficient; relaying the coerced authentication to a suitable service can grant control of the Windows domain.
Summary
What happened
Spoofing in Microsoft Windows LSA allows remote attackers to coerce a domain controller into NTLM authentication through LSARPC. An anonymously callable LSARPC method accepts an attacker-controlled network path and initiates outbound NTLM authentication to that destination. Network access to LSARPC is sufficient; relaying the coerced authentication to a suitable service can grant control of the Windows domain.
The record
- CVE
- CVE-2022-26925
- Published
- May 10, 2022
- Updated
- Oct 21, 2025
- Vendor
- Microsoft
- Product
- Windows 10 Version 1507
- Classifications
- CWE-306, T1187
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- May 10, 2022CVE publishedPublication date reported by the CVE source.
- Jul 1, 2022Exploitation reportedCISA Known Exploited Vulnerabilities catalog listing
- Jul 6, 2022Exploitation reportedReported active exploitation of the LSARPC vector
- Oct 21, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
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- Affected versionversion=10.0.10240.0 <10.0.10240.19297
What conditions does exploitation require?
What is affected?
Published CVSS scores
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Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
- PetitPotam LSARPC proof of conceptproof of concept · demonstrated
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Reported exploitation
- CISA Known Exploited Vulnerabilities catalog listingknown exploited catalog
- Reported active exploitation of the LSARPC vectorreported exploitation
Technologies
Your stack
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Your stack
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