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Full vulnerability report · 2022
CVE-2022-26923High confidence

Microsoft Active Directory Domain Services Privilege Escalation Vulnerability

Microsoft · Active Directory

8.8HighCVSS 3.1
Recommended action
Patch now

CISA confirms exploitation in the wild and lists 2022-09-08 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 18 Aug 2022

Evidence used

  • CISA confirms exploitation in the wild.
  • EPSS is 83.50% 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 Active Directory 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-2022-31469

CISA KEV mirrored by ENISA

Active Directory Domain Services Elevation of Privilege Vulnerability

EUVD state
Present in the current official mapping
Known exploitation
Recorded by ENISA since 18 Aug 2022. Evidence sources: cisa_kev.
ENISA score
8.8 · CVSS 3.1
Advisory evidence
1 linked advisory record
Recommended actionPatch now

CISA confirms exploitation in the wild and lists 2022-09-08 as the remediation due date.

Patch available
01

What, why and how

An authenticated user could manipulate attributes on computer accounts they own or manage, and acquire a certificate from Active Directory Certificate Services that would allow for privilege escalation to SYSTEM.

What

An authenticated user could manipulate attributes on computer accounts they own or manage, and acquire a certificate from Active Directory Certificate Services that would allow for privilege escalation to SYSTEM.

Why

The product does not validate, or incorrectly validates, a certificate.

How

An attacker operating through a network path may attempt exploitation with low privileges. If successful, the issue may gain additional privileges.

What

An authenticated user could manipulate attributes on computer accounts they own or manage, and acquire a certificate from Active Directory Certificate Services that would allow for privilege escalation to SYSTEM.

Why

The product does not validate, or incorrectly validates, a certificate.

How

An attacker operating through a network path may attempt exploitation with low privileges. If successful, the issue may gain additional privileges.

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 2022-08-18.

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 → Improper Certificate Validation → gain additional privileges
Attack surface
Network
Privileges required
Low: a basic authenticated account is required
User interaction
None
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-295 ↗

CWE-295: Improper Certificate Validation. The product does not validate, or incorrectly validates, a certificate.

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:L/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.ACLowAttack complexity: No specialised conditions are required beyond attacker-controlled input.PRLowPrivileges required: The attacker needs basic user-level 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.
NetworkPrivilege escalationCWE-295CISA KEV
A

Official authority intelligence

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

ENISA EUVD · EUVD-2022-31469Known-exploited evidence recorded

Active Directory Domain Services Elevation of Privilege 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-2022-22713 du 10 mai 2022 https://msrc.microsoft.com/update-guide/vulnerability/CVE-2022-22713 Bulletin de sécurité Microsoft 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

Official advisory ↗
JVN iPedia · Japanese · JVNDB-2022-001871複数の Microsoft Windows 製品における権限を昇格される脆弱性

複数の Microsoft Windows 製品には、Active Directory Domain Services に不備があるため、権限を昇格される脆弱性が存在します。

Official advisory ↗
KISA KrCERT/CC · Korean · KNVD-5904MS 4월 보안 위협에 따른 정기 보안 업데이트 권고

soft Edge (Chromium-based) | CVE-2023-1814 | Chromium: CVE-2023-1814 안전 검색에서 신뢰할 수 없는 입력에 대한 불충분한 유효성 검사 | | Microsoft Edge (Chromium-based) | CVE-2023-1813 | Chromium: CVE-2023-1813 확장에서 부적절한 구현 | | Microsoft Edge (Chromium-based) | CVE-2023-1812 | Chromium: CVE-2023-1812 DOM Bindings에서 범위를 벗어난 메모리 액세스 | | Microsoft Edge (Chromium-based) | CVE-2023-1811 | Chromium: CVE-2023-1811 Frames에서 UaF(Use after free) | | Microsoft Edge (Chromium-based) | CVE-2023-1810 | Chromium: CVE-2023-1810 Visuals에서 힙 버퍼 오버플로 | | Windows Netlogon | CVE-2022-38023 | Netlogon RPC 권한 상승 취약성 | | .NET Core | CVE-2022-34716 | .NET 스푸핑 취약성 | | Windows Active Directory | CVE-2022-26923 | Active Directory Domain Services Elevation of Privilege Vulnerability | | WinVerifyTrust Signature Verification | CVE-2013-3900 | WinVerifyTrust 서명 유효 취약성 | ##### □ 작성 : 취약점분석팀

Official advisory ↗
KISA KrCERT/CC · Korean · KNVD-5701현재 악용되고 있는 Exploit(Update. 2022-08-18)

An authenticated user could manipulate attributes on computer accounts they own or manage, and acquire a certificate from Active Directory Certificate Services that would allow for privilege escalation to SYSTEM.

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

중요 서비스 거부 Microsoft Visual Studio 중요 원격 코드 실행 원격 데스크톱 클라이언트 긴급 원격 코드 실행 [참고 사이트] [1] (한글) https://portal.msrc.microsoft.com/ko-kr/security-guidance [2] (영문) https://portal.msrc.microsoft.com/en-us/security-guidance [3] https://msrc.microsoft.com/update-guide/releaseNote/2022-May [4] https://msrc.microsoft.com/update-guide o 취약점 요약 정보 제품 카테고리 CVE 번호 CVE 제목 .NET Framework CVE-2022-30130 .NET Framework 서비스 거부 취약성 .NET and Visual Studio CVE-2022-23267 .NET 및 Visual Studio 서비스 거부 취약성 .NET and Visual Studio CVE-2022-29117 .NET 및 Visual Studio 서비스 거부 취약성 .NET and Visual Studio CVE-2022-29145 .NET 및 Visual Studio 서비스 거부 취약성 Windows Active Directory CVE-2022-26923 Active Directory Domain Services Elevation of Privilege Vulnerability Windows BitLocker CVE-2022-29127 BitLocker 보안 기능 우회 취약성 Microsoft Edge (Chromium-d) CVE-2022-1096 Chromium: CVE-2022-1096 V8에서 유형 혼란(Type Confusion) Microsoft Office Excel CVE-2022-29109 Microsoft Excel 원격 코드 실행 취약성 Microsoft Office Excel CVE-2022-29110 Microsoft Excel 원격 코드 실행 취약성 Microsoft Exchange Server CVE-2022-21978 Microsoft Exchange Server 권한 상승 취약성 Microsoft Office CVE-2022-29107 Microsoft Office 보안 기능 우회 취약성 Microsoft Office SharePoint CVE-2022-29108 Microsoft SharePoint Server 원격 코드 실행 취약성 Windows PowerShell CVE-2022-26788 PowerShell 권한 상승 취약성 Visual Studio Code

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-295 · Improper Certificate Validation

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-2022-31469
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 < 10.0.17763.4252; 10.0.0 < 10.0.17763.4252; 10.0.0 < 10.0.18363.2274; 10.0.0 < 10.0.19043.1706; 10.0.20348.0 < 10.0.20348.1668; 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 < 10.0.17763.4252, 10.0.0 < 10.0.17763.4252; Windows Server 2019: 10.0.17763.0 < 10.0.17763.4252; Windows Server 2019 (Server Core installation): 10.0.17763.0 < 10.0.17763.4252; 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 < 10.0.20348.1668; 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 < 10.0.22000.1817; 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 < 10.0.14393.5850; Windows Server 2016: 10.0.14393.0 < 10.0.14393.5850; Windows Server 2016 (Server Core installation): 10.0.14393.0 < 10.0.14393.5850; Windows 8.1: 6.3.0 < 6.3.9600.20371; Windows Server 2012 R2: 6.3.9600.0 < 6.3.9600.20919; Windows Server 2012 R2 (Server Core installation): 6.3.9600.0 < 6.3.9600.20919 · 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-2022-31469↗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-2022-26923 · cve.blacktree.nl