BlackTreeCVE Intelligence
← Back to the CVE catalogue
Full vulnerability report · 2022
CVE-2022-26925High confidence

Microsoft Windows LSA Spoofing Vulnerability

Microsoft · Windows

8.1HighCVSS 3.1
Recommended action
Patch now

CISA confirms exploitation in the wild and lists 2022-07-22 as the remediation due date.

Patch available
R
Operational reassessment

Published severity in operational context

Open reassessment dashboard →
Published severityHighOperational priority:Critical, raised one band.upgradedsince 1 Jul 2022

Evidence used

  • CISA confirms exploitation in the wild.
  • The selected CVSS metric records a network-reachable, unauthenticated path with no user interaction.
  • EPSS is 10.48% for the current model date.

Compensating controls

  • Validate the affected product branch and deploy the verified fixed release.
  • Restrict the affected network interface to trusted sources where business-safe.
  • Increase monitoring for the attack path and post-exploitation behaviour described in the report.

Verification

  1. Confirm that the asset runs Microsoft Windows and falls inside the recorded affected range.
  2. Verify the installed build against the product-specific fixed version after deployment.
  3. Validate exposure, authentication requirements and compensating controls in the actual environment.
  4. Reopen this reassessment when CVSS, KEV, EPSS, exploit evidence or remediation changes.
Mitigation target: Within 3 daysRemediation target: Within 90 days

This automated reassessment organises public evidence. It does not know asset exposure, business impact or control effectiveness and does not replace CVSS or a human risk decision.

Optional official sources

National CERT insights
?CERT means Computer Emergency Response Team; CSIRT is the closely related term Computer Security Incident Response Team.

Choose official national sources for this report. Each advisory shows its original language. Your selection is remembered on this device and included in shared links.

Official European source

ENISA European Vulnerability Database

Official EUVD identifiers, advisory evidence and known-exploited context. Missing fields are not treated as evidence of low risk.

1 current
ENISA EUVD identifier

EUVD-2022-31470

CISA KEV mirrored by ENISA

Windows LSA Spoofing Vulnerability

EUVD state
Present in the current official mapping
Known exploitation
Recorded by ENISA since 1 Jul 2022. Evidence sources: cisa_kev.
ENISA score
8.1 · CVSS 3.1
Advisory evidence
1 linked advisory record
Recommended actionPatch now

CISA confirms exploitation in the wild and lists 2022-07-22 as the remediation due date.

Patch available
01

What, why and how

Microsoft Windows Local Security Authority (LSA) contains a spoofing vulnerability where an attacker can coerce the domain controller to authenticate to the attacker using NTLM.

What

Microsoft Windows Local Security Authority (LSA) contains a spoofing vulnerability where an attacker can coerce the domain controller to authenticate to the attacker using NTLM.

Why

A security-sensitive function is reachable without the authentication check that should protect it.

How

An attacker operating through a network path may attempt exploitation without authentication or user interaction. If successful, the issue may cause the confidentiality, integrity or availability impact described by the vendor.

What

Microsoft Windows Local Security Authority (LSA) contains a spoofing vulnerability where an attacker can coerce the domain controller to authenticate to the attacker using NTLM.

Why

A security-sensitive function is reachable without the authentication check that should protect it.

How

An attacker operating through a network path may attempt exploitation without authentication or user interaction. If successful, the issue may cause the confidentiality, integrity or availability impact described by the vendor.

02

Exploit reality and attack path

CVSS severity, EPSS forecast probability, public exploit material and CISA-confirmed exploitation are separate signals.

Observed exploitation
?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.
Confirmed in the wild

CISA added this CVE to its Known Exploited Vulnerabilities catalogue on 2022-07-01.

Public PoC / exploit material
?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.
None recorded

No exploit-tagged reference or CISA SSVC proof-of-concept state is currently recorded. Research may still exist outside the structured feeds.

Likely attack path
a network path → Missing Authentication for Critical Function → cause the confidentiality, integrity or availability impact described by the vendor
Attack surface
Network
Privileges required
None: unauthenticated exploitation is possible
User interaction
None
Attack complexity
High: exploitation depends on specific conditions
Security boundary
Unchanged: impact remains within the vulnerable component's security authority
Weakness
?CWE means Common Weakness Enumeration: a standard category for the underlying weakness.
CWE-306 ↗

CWE-306: Missing Authentication for Critical Function. The product does not perform any authentication for functionality that requires a provable user identity or consumes a significant amount of resources.

CVSS vector
?CVSS means Common Vulnerability Scoring System. The vector records the metric values used to calculate technical severity.
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

Common Vulnerability Scoring System 3.1: the compact vector below is decoded into plain language.

AVNetworkAttack vector: The vulnerable component can be reached over a network.ACHighAttack complexity: Successful exploitation depends on specific conditions outside the attacker's direct control.PRNonePrivileges required: The attacker does not need an account or existing privileges.UINoneUser interaction: No action by another user is required.SUnchangedScope: The security impact remains within the vulnerable component's authority.CHighConfidentiality impact: A successful attack can cause a major loss.IHighIntegrity impact: A successful attack can cause a major loss.AHighAvailability impact: A successful attack can cause a major loss.
Post-exploitation / living off the land
No specific living-off-the-land technique is confirmed in the structured sources. Monitor normal administration tools for activity inconsistent with the affected service's baseline.
NetworkUnauthenticatedCWE-306CISA KEV
A

Official authority intelligence

Only matched European and national findings are included. Language selectors and unavailable sources are omitted.

ENISA EUVD · EUVD-2022-31470Known-exploited evidence recorded

Windows LSA Spoofing Vulnerability

Official EUVD record ↗
Cyber Security Agency of Singapore · English · CSA-SB-20220511Security Bulletin 11 May 2022

The Cyber Security Agency of Singapore included this CVE in its official Security Bulletin 11 May 2022, published on 11 May 2022. Open the linked bulletin for the product, severity and reference information published in that issue.

Official advisory ↗
CERT-FR · French · CERTFR-2022-AVI-448Multiples vulnérabilités dans Microsoft Windows

CVE-2022-23270 du 10 mai 2022 https://msrc.microsoft.com/update-guide/vulnerability/CVE-2022-23270 Bulletin de sécurité Microsoft CVE-2022-23279 du 10 mai 2022 https://msrc.microsoft.com/update-guide/vulnerability/CVE-2022-23279 Bulletin de sécurité Microsoft CVE-2022-24466 du 10 mai 2022 https://msrc.microsoft.com/update-guide/vulnerability/CVE-2022-24466 Bulletin de sécurité Microsoft CVE-2022-26913 du 10 mai 2022 https://msrc.microsoft.com/update-guide/vulnerability/CVE-2022-26913 Bulletin de sécurité Microsoft CVE-2022-26923 du 10 mai 2022 https://msrc.microsoft.com/update-guide/vulnerability/CVE-2022-26923 Bulletin de sécurité Microsoft CVE-2022-26925 du 10 mai 2022 https://msrc.microsoft.com/update-guide/vulnerability/CVE-2022-26925 Bulletin de sécurité Microsoft CVE-2022-26926 du 10 mai 2022 https://msrc.microsoft.com/update-guide/vulnerability/CVE-2022-26926 Bulletin de sécurité Microsoft CVE-2022-26927 du 10 mai 2022 https://msrc.microsoft.com/update-guide/vulnerability/CVE-2022-26927 Bulletin de sécurité Microsoft CVE-2022-26930 du 10 mai 2022 https://msrc.microsoft.com/update-guide/vulnerability/CVE-2022-26930 Bulletin de sécurité Microsoft CVE-2022-26931 du 10 mai 2022 https://msrc.microsoft.com/update-guide/vulnerability/CVE-2022-26931 Bulletin de sécurité Microsoft CVE-2022-26932

Official advisory ↗
JVN iPedia · Japanese · JVNDB-2022-001857複数の Microsoft Windows 製品におけるなりすまされる脆弱性

複数の Microsoft Windows 製品には、Windows LSA に不備があるため、なりすまされる脆弱性が存在します。

Official advisory ↗
KISA KrCERT/CC · Korean · KNVD-5654현재 악용되고 있는 Exploit(Update. 2022-07-01)

Microsoft Windows Local Security Authority (LSA) contains a spoofing vulnerability where an attacker can coerce the domain controller to authenticate to the attacker using NTLM.

Official advisory ↗
KISA KrCERT/CC · Korean · KNVD-5599MS 5월 보안 위협에 따른 정기 보안 업데이트 권고

22-29128 Windows LDAP 원격 코드 실행 취약성 Windows LDAP - Lightweight Directory Access Protocol CVE-2022-29129 Windows LDAP 원격 코드 실행 취약성 Windows LDAP - Lightweight Directory Access Protocol CVE-2022-29130 Windows LDAP 원격 코드 실행 취약성 Windows LDAP - Lightweight Directory Access Protocol CVE-2022-29131 Windows LDAP 원격 코드 실행 취약성 Windows LDAP - Lightweight Directory Access Protocol CVE-2022-29137 Windows LDAP 원격 코드 실행 취약성 Windows LDAP - Lightweight Directory Access Protocol CVE-2022-29139 Windows LDAP 원격 코드 실행 취약성 Windows LDAP - Lightweight Directory Access Protocol CVE-2022-29141 Windows LDAP 원격 코드 실행 취약성 Microsoft Local Security Authority Server (lsasrv) CVE-2022-26925 Windows LSA 스푸핑 취약성 Windows NTFS CVE-2022-26933 Windows NTFS 정보 유출 취약성 Windows Network File System CVE-2022-26937 Windows Network 파일 시스템 원격 코드 실행 취약성 Windows Media CVE-2022-22016 Windows PlayToManager 권한 상승 취약성 Windows Remote Desktop CVE-2022-22015 Windows RDP(원격 데스크톱 프로토콜) 정보 유출 취약성 Windows Server Service CVE-2022-26936 Windows Server 서비스 정보 유출 취약성 Windows WLAN Auto Config Service CVE-2022-29121 Windows WLAN 자동 구성 서비스 서비스 거부 취약성 Windows WLAN Auto Config Service CVE-2022-26935 Windows WLAN 자동 구성 서비스 정보 공개 취약성 Microsoft Graphics Component CVE-2022-26927 Windows 그래픽 구성 요소 원격 코드 실행 취약성 Microsoft Graphics Component CVE-2022-26934 Windows 그래픽 구성

Official advisory ↗
03

Patch and workaround

Operational remediation based on structured source evidence.

Status
?Patch availability is based on structured fixed-version fields and authoritative update references. If no fix is verified, check the vendor advisory before making a change.
Patch available
Affected
Fixed
An authoritative update reference is available, but the fixed version is not recorded in the structured CVE fields. Check the linked vendor advisory for the applicable release.
Action
Review the linked authoritative reference and apply the recorded fixed release appropriate to the affected product branch.
Workaround
No verified workaround is recorded. If business-safe, reduce exposure to the affected interface and allow only trusted sources until authoritative guidance is available.
04

Evidence and provenance

Published 10 May 2022 · Last source change 21 Oct 2025, 23:15 UTC · CWE-306 · Missing Authentication for Critical Function

CVE recordCVE.org · 5.1
CVSS sourceCNA
EPSS source
?The date BlackTree first stored a score for this CVE from the daily FIRST EPSS feed.
FIRST · tracked since 2026-08-14
European sourceENISA EUVD · EUVD-2022-31470
Product sourceCISA KEV
Remediation sourceCVE/CNA references
CWE sourceCISA ADP
NVD statusNVD enriched

Core structured fields are present and their contributing authorities are shown above.

Material change intelligence

What changed after publication

View recent updates ↗
  1. Affected versionsThe structured affected or fixed version information changed.
    Before
    10.0.17763.0 < 10.0.17763.2928; 10.0.0 < 10.0.17763.2928; 10.0.0 < 10.0.18363.2274; 10.0.0 < 10.0.19043.1706; 10.0.20348.0 < 10.0.20348.707; 10.0.0 < 10.0.19042.1706 · Fixed: An authoritative update reference is available, but the fixed version is not recorded in the structured CVE fields. Check the linked vendor advisory for the applicable release.
    After
    Windows 10 Version 1809: 10.0.17763.0 < 10.0.17763.2928, 10.0.0 < 10.0.17763.2928; Windows Server 2019: 10.0.17763.0 < 10.0.17763.2928; Windows Server 2019 (Server Core installation): 10.0.17763.0 < 10.0.17763.2928; Windows 10 Version 1909: 10.0.0 < 10.0.18363.2274; Windows 10 Version 21H1: 10.0.0 < 10.0.19043.1706; Windows Server 2022: 10.0.20348.0 < 10.0.20348.707; Windows 10 Version 20H2: 10.0.0 < 10.0.19042.1706; Windows Server version 20H2: 10.0.0 < 10.0.19042.1706; Windows 11 version 21H2: 10.0.0 < 10.0.22000.675; Windows 10 Version 21H2: 10.0.19043.0 < 10.0.19043.1706; Windows 10 Version 1507: 10.0.10240.0 < 10.0.10240.19297; Windows 10 Version 1607: 10.0.14393.0 < 10.0.14393.5125; Windows Server 2016: 10.0.14393.0 < 10.0.14393.5125; Windows Server 2016 (Server Core installation): 10.0.14393.0 < 10.0.14393.5125; Windows 7: 6.1.0 < 6.1.7601.25954; Windows 7 Service Pack 1: 6.1.0 < 6.1.7601.25954; Windows 8.1: 6.3.0 < 6.3.9600.20371; Windows Server 2008 Service Pack 2: 6.0.6003.0 < 6.0.6003.21481; Windows Server 2008 Service Pack 2 (Server Core installation): 6.0.6003.0 < 6.0.6003.21481; Windows Server 2008 Service Pack 2: 6.0.6003.0 < 6.0.6003.21481; Windows Server 2008 R2 Service Pack 1: 6.1.7601.0 < 6.1.7601.25954; Windows Server 2008 R2 Service Pack 1 (Server Core installation): 6.1.7601.0 < 6.1.7601.25954; Windows Server 2012: 6.2.9200.0 < 6.2.9200.23714; Windows Server 2012 (Server Core installation): 6.2.9200.0 < 6.2.9200.23714; Windows Server 2012 R2: 6.3.9600.0 < 6.3.9600.20371; Windows Server 2012 R2 (Server Core installation): 6.3.9600.0 < 6.3.9600.20371 · Fixed: An authoritative update reference is available, but the fixed version is not recorded in the structured CVE fields. Check the linked vendor advisory for the applicable release.
    CNA ↗
Material fields only · duplicate refreshes suppressed · history retained for the configured operational retention period
CVE published
Added to CISA KEV
Fixed release or patch reference recorded
ENISA EUVD · EUVD-2022-31470↗CISA KEV record↗CVE authority or vendor reference↗Patch or update reference↗Official CVE record (CNA and ADP data)↗NVD record↗
Technical terms and abbreviations used in this report
CVE
Common Vulnerabilities and Exposures: the public identifier for one disclosed vulnerability.
CVSS
Common Vulnerability Scoring System: a technical severity framework; it is not patching priority by itself.
EPSS
Exploit Prediction Scoring System: FIRST's estimate of the probability that exploitation activity will be observed in the next 30 days; it is a forecast, not confirmation.
CWE
Common Weakness Enumeration: the standard category describing the underlying software or hardware weakness.
CNA
CVE Numbering Authority: an organisation authorised to assign and publish CVE records.
CISA ADP
Cybersecurity and Infrastructure Security Agency Authorized Data Publisher: structured enrichment added to a CVE record.
NVD
National Vulnerability Database: NIST's enrichment service for CVE records.
CERT / CSIRT
A computer security incident response team that publishes warnings or coordinates incident response.
PoC
Proof of concept: public material that demonstrates or helps reproduce exploitation.
CSAF
Common Security Advisory Framework: a machine-readable format for security advisories.
LoTL
Living off the land: abuse of legitimate tools or system functions during an attack.
Free version - for non-commercial use only.CVE-2022-26925 · cve.blacktree.nl