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Full vulnerability report · 2022
CVE-2022-35770High confidence

Windows NTLM Spoofing Vulnerability

Microsoft · Windows 10 Version 1809

6.5MediumCVSS 3.1
Recommended action
Scheduled

Medium technical severity with no CISA KEV confirmation; remediate through the normal risk-based patch cycle unless local exposure raises the priority.

Patch available
R
Operational reassessment

Published severity in operational context

Open reassessment dashboard →
Published severityMediumOperational priority:Medium, unchanged from published severity.unchanged

Evidence used

  • No CISA KEV confirmation is currently recorded.
  • EPSS is 1.66% 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.
  • Monitor vendor guidance and exploitation sources for a material change.

Verification

  1. Confirm that the asset runs Microsoft Windows 10 Version 1809 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: As exposure requiresRemediation target: Within 365 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-2022-38643

No EUVD known-exploited evidence

ENISA has published the identifier mapping but no EUVD description has been stored yet.

EUVD state
Present in the current official mapping
Known exploitation
Not present in the current ENISA EUVD known-exploited dataset. This is not proof of no exploitation.
ENISA score
Not supplied in the stored EUVD record
Advisory evidence
No linked advisory details stored yet
Recommended actionScheduled

Medium technical severity with no CISA KEV confirmation; remediate through the normal risk-based patch cycle unless local exposure raises the priority.

Patch available
01

What, why and how

Windows NTLM Spoofing Vulnerability

What

Windows NTLM Spoofing Vulnerability

Why

This attack-focused weakness is caused by incorrectly implemented authentication schemes that are subject to spoofing attacks.

How

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

What

Windows NTLM Spoofing Vulnerability

Why

This attack-focused weakness is caused by incorrectly implemented authentication schemes that are subject to spoofing attacks.

How

An attacker operating through a network path may attempt exploitation without authentication after a 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.
No confirmed evidence

No CISA KEV match was present at the last successful refresh. This means no confirmation from that source, not proof of no exploitation.

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 → Authentication Bypass by Spoofing → cause the confidentiality, integrity or availability impact described by the vendor
Attack surface
Network
Privileges required
None: unauthenticated exploitation is possible
User interaction
Required interaction required
Attack complexity
Low: no specialised conditions are recorded
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-290 ↗

CWE-290: Authentication Bypass by Spoofing. This attack-focused weakness is caused by incorrectly implemented authentication schemes that are subject to spoofing attacks.

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:L/PR:N/UI:R/S:U/C:H/I:N/A:N/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.ACLowAttack complexity: No specialised conditions are required beyond attacker-controlled input.PRNonePrivileges required: The attacker does not need an account or existing privileges.UIRequiredUser interaction: Another user must perform an action for exploitation to succeed.SUnchangedScope: The security impact remains within the vulnerable component's authority.CHighConfidentiality impact: A successful attack can cause a major loss.INoneIntegrity impact: No direct loss is represented by this metric.ANoneAvailability impact: No direct loss is represented by this metric.
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-290
A

Official authority intelligence

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

BSI · German · WID-SEC-2022-1682Microsoft Windows und Microsoft Windows Server: Mehrere Schwachstellen

Ein entfernter, anonymer, authentisierter oder lokaler Angreifer kann mehrere Schwachstellen in Microsoft Windows und Microsoft Windows Server ausnutzen, um seine Privilegien zu erhöhen, beliebigen Code auszuführen, Sicherheitsmaßnahmen zu umgehen, vertrauliche Informationen offenzulegen, einen Denial of Service Zustand herzustellen und Informationen falsch darzustellen.

Official advisory ↗
Cyber Security Agency of Singapore · English · CSA-SB-20221012Security Bulletin 12 Oct 2022

The Cyber Security Agency of Singapore included this CVE in its official Security Bulletin 12 Oct 2022, published on 12 October 2022. Open the linked bulletin for the product, severity and reference information published in that issue.

Official advisory ↗
CERT-FR · French · CERTFR-2022-AVI-907Multiples vulnérabilités dans Microsoft Windows

octobre 2022 https://msrc.microsoft.com/update-guide/vulnerability/CVE-2022-30198 Bulletin de sécurité Microsoft CVE-2022-33634 du 11 octobre 2022 https://msrc.microsoft.com/update-guide/vulnerability/CVE-2022-33634 Bulletin de sécurité Microsoft CVE-2022-33635 du 11 octobre 2022 https://msrc.microsoft.com/update-guide/vulnerability/CVE-2022-33635 Bulletin de sécurité Microsoft CVE-2022-33645 du 11 octobre 2022 https://msrc.microsoft.com/update-guide/vulnerability/CVE-2022-33645 Bulletin de sécurité Microsoft CVE-2022-34689 du 11 octobre 2022 https://msrc.microsoft.com/update-guide/vulnerability/CVE-2022-34689 Bulletin de sécurité Microsoft CVE-2022-35770 du 11 octobre 2022 https://msrc.microsoft.com/update-guide/vulnerability/CVE-2022-35770 Bulletin de sécurité Microsoft CVE-2022-37965 du 11 octobre 2022 https://msrc.microsoft.com/update-guide/vulnerability/CVE-2022-37965 Bulletin de sécurité Microsoft CVE-2022-37970 du 11 octobre 2022 https://msrc.microsoft.com/update-guide/vulnerability/CVE-2022-37970 Bulletin de sécurité Microsoft CVE-2022-37973 du 11 octobre 2022 https://msrc.microsoft.com/update-guide/vulnerability/CVE-2022-37973 Bulletin de sécurité Microsoft CVE-2022-37974 du 11 octobre 2022 https://msrc.microsoft.com/update-guide/vulnerability/CVE-2022-37974 Bulletin de sécurité Micr

Official advisory ↗
JVN iPedia · Japanese · JVNDB-2022-002467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 NTLM 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-5744MS 10월 보안 위협에 따른 정기 보안 업데이트 권고

VE-2022-37976 Active Directory 인증서 서비스 권한 상승 취약성 Windows Group Policy CVE-2022-37975 Windows 그룹 정책 권한 상승 취약성 Windows Perception Simulation Service CVE-2022-37974 Windows 혼합 현실 개발자 도구 정보 유출 취약성 Windows Local Session Manager (LSM) CVE-2022-37973 Windows LSM(로컬 세션 관리자) 서비스 거부 취약성 Windows Defender CVE-2022-37971 Microsoft Windows Defender 권한 상승 취약성 Windows DWM Core Library CVE-2022-37970 Windows DWM 핵심 라이브러리 권한 상승 취약성 Azure Arc CVE-2022-37968 Azure Arc Connect 권한 상승 취약성 Remote Access Service Point-to-Point Tunneling Protocol CVE-2022-37965 Windows 지점 간 터널링 프로토콜 서비스 거부 취약성 Service Fabric CVE-2022-35829 Service Fabric Explorer 스푸핑 취약성 Windows NTLM CVE-2022-35770 Windows NTLM 스푸핑 취약성 Windows CryptoAPI CVE-2022-34689 Windows CryptoAPI 스푸핑 취약성 Windows TCP/IP CVE-2022-33645 Windows TCP/IP 드라이버 서비스 거부 취약성 Microsoft Graphics Component CVE-2022-33635 Windows GDI+ 원격 코드 실행 취약성 Windows Point-to-Point Tunneling Protocol CVE-2022-33634 Windows 지점 간 터널링 프로토콜 원격 코드 실행 취약성 Windows Point-to-Point Tunneling Protocol CVE-2022-30198 Windows 지점 간 터널링 프로토콜 원격 코드 실행 취약성 Microsoft Exchange Server CVE-2022-30134 Microsoft Exchange 정보 유출 취약성 Microsoft Exchange Server CVE-2022-24516 Microsoft Exchange Server 권한 상승 취약성 Windows Point-to-Point Tunneling Protocol CVE-2022-24504 Windows 지점 간 터널링 프로토콜 원격 코드 실행 취약성 Microsoft Excha

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 11 Oct 2022 · Last source change 2 Jan 2025, 21:27 UTC · CWE-290 · Authentication Bypass by Spoofing

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-2022-38643
Product sourceCNA
Remediation sourceCVE/CNA references
CWE sourceNIST NVD
NVD statusNVD modified after enrichment

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

Material change intelligence

What changed after publication

View recent updates ↗

No material field changes have been recorded since change tracking began. Routine source refreshes and cosmetic edits are intentionally excluded.

Material fields only · duplicate refreshes suppressed · history retained for the configured operational retention period
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-2022-35770 · cve.blacktree.nl