BlackTreeCVE Intelligence
← Back to the CVE catalogue
Full vulnerability report · 2026
CVE-2026-0386High confidence

Windows Deployment Services Remote Code Execution Vulnerability

Microsoft · Windows Server 2008 R2 Service Pack 1

7.5HighCVSS 3.1
Recommended action
Within 7 days

High technical severity; prioritise exposed affected systems while verifying vendor guidance.

Patch available
Optional official sources

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

Select the national-authority views to include. The exact source language is shown on each matched advisory. Your choice is remembered on this device and encoded in the shareable URL.

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-2026-2206

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 actionWithin 7 days

High technical severity; prioritise exposed affected systems while verifying vendor guidance.

Patch available
01

What, why and how

Improper access control in Windows Deployment Services allows an unauthorized attacker to execute code over an adjacent network.

What

Improper access control in Windows Deployment Services allows an unauthorized attacker to execute code over an adjacent network.

Why

The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.

How

An attacker operating through an adjacent network may attempt exploitation without authentication or user interaction. If successful, the issue may execute code or commands in the affected security context.

What

Improper access control in Windows Deployment Services allows an unauthorized attacker to execute code over an adjacent network.

Why

The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.

How

An attacker operating through an adjacent network may attempt exploitation without authentication or user interaction. If successful, the issue may execute code or commands in the affected security context.

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
an adjacent network → Improper Access Control → execute code or commands in the affected security context
Attack surface
Adjacent
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-284 ↗

CWE-284: Improper Access Control. The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.

CVSS vector
?CVSS means Common Vulnerability Scoring System. The vector records the metric values used to calculate technical severity.
CVSS:3.1/AV:A/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.

AVAdjacentAttack vector: The attacker must be on an adjacent or logically close 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
After compromise, an attacker may use built-in shells, scripting engines, scheduled tasks and native network utilities for discovery, persistence or movement. This is a plausible LoTL path, not evidence that it has occurred for every attack.
UnauthenticatedRemote code executionCWE-284
A

Official authority intelligence

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

BSI · German · WID-SEC-2026-0083Microsoft Windows : Mehrere Schwachstellen

Ein Angreifer kann mehrere Schwachstellen in verschiedenen Versionen von Microsoft Windows und Microsoft Windows Server ausnutzen,, um erweiterte Privilegien, einschließlich Benutzer- und Administratorrechten, zu erlangen, beliebigen Code auszuführen, Sicherheitsmaßnahmen zu umgehen, vertrauliche Informationen offenzulegen, einen Denial-of-Service-Zustand zu verursachen und Daten zu manipulieren.

Official advisory ↗
Cyber Security Agency of Singapore · English · CSA-SB-20260114Security Bulletin 14 Jan 2026

The Cyber Security Agency of Singapore included this CVE in its official Security Bulletin 14 Jan 2026, published on 14 January 2026. Open the linked bulletin for the product, severity and reference information published in that issue.

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-0044Multiples vulnérabilités dans Microsoft Windows

des bulletins d'actualité Premier Ministre S.G.D.S.N Agence nationale de la sécurité des systèmes d'information Paris, le 14 janvier 2026 N° CERTFR-2026-AVI-0044 Affaire suivie par: CERT-FR Avis du CERT-FR Objet: Multiples vulnérabilités dans Microsoft Windows Gestion du document Référence CERTFR-2026-AVI-0044 Titre Multiples vulnérabilités dans Microsoft Windows Date de la première version 14 janvier 2026 Date de la dernière version 14 janvier 2026 Source(s) Bulletin de sécurité Microsoft Windows CVE-2023-31096 du 13 janvier 2026 Bulletin de sécurité Microsoft Windows CVE-2024-55414 du 13 janvier 2026 Bulletin de sécurité Microsoft Windows CVE-2026-0386 du 13 janvier 2026 Bulletin de sécurité Microsoft Windows CVE-2026-20804 du 13 janvier 2026 Bulletin de sécurité Microsoft Windows CVE-2026-20805 du 13 janvier 2026 Bulletin de sécurité Microsoft Windows CVE-2026-20808 du 13 janvier 2026 Bulletin de sécurité Microsoft Windows CVE-2026-20809 du 13 janvier 2026 Bulletin de sécurité Microsoft Windows CVE-2026-20810 du 13 janvier 2026 Bulletin de sécurité Microsoft Windows CVE-2026-20811 du 13 janvier 2026 Bulletin de sécurité Microsoft Windows CVE-2026-20812 du 13 janvier 2026 Bulletin de sécurité Microsoft Windows CVE-2026-20814 du 13 janvier 2026 Bulletin de sécurité Microsoft Windows CVE-202

Official advisory ↗
JVN iPedia · Japanese · JVNDB-2026-001329マイクロソフトのMicrosoft Windows Server 2008等の複数製品におけるアクセス制御に関する脆弱性

Windows Deployment Servicesの不適切なアクセス制御により、未承認の攻撃者が隣接するネットワーク上でコードを実行できます。

Official advisory ↗
KISA KrCERT/CC · Korean · KNVD-6667MS 1월 보안 위협에 따른 정기 보안 업데이트 권고

DAP 변조 취약성 | | Windows Win32K - ICOMP | CVE-2026-20811 | Win32k 권한 상승 취약성 | | Windows Ancillary Function Driver for WinSock | CVE-2026-20810 | WinSock용 Windows 보조 기능 드라이버 권한 상승 취약성 | | Windows Kernel Memory | CVE-2026-20809 | Windows 커널 메모리 권한 상승 취약성 | | Printer Association Object | CVE-2026-20808 | Windows 파일 탐색기 권한 상승 취약성 | | Desktop Window Manager | CVE-2026-20805 | 바탕 화면 창 관리자 정보 공개 취약성 | | Windows Hello | CVE-2026-20804 | Windows Hello 변조 취약성 | | SQL Server | CVE-2026-20803 | Microsoft SQL Server 권한 상승 취약성 | | Microsoft Edge (Chromium-based) | CVE-2026-0628 | Chromium: CVE-2026-0628 웹 보기 태그에서 불충분한 정책 적용 | | Windows Deployment Services | CVE-2026-0386 | Windows Deployment Services 원격 코드 실행 취약성 | | Microsoft Edge (Chromium-based) | CVE-2025-65046 | Microsoft Edge(Chromium 기반) 스푸핑 취약성 | | Microsoft Partner Center | CVE-2025-65041 | Microsoft Partner Center Elevation of Privilege Vulnerability | | Azure Container Apps | CVE-2025-65037 | Azure Container Apps Remote Code Execution Vulnerability | | Windows DWM Core Library | CVE-2025-64680 | Windows DWM 핵심 라이브러리 권한 상승 취약성 | | Office Out-of-Box Experience | CVE-2025-64677 | Office 첫 실행 경험 스푸핑 취약성 | | Microsoft Purview | CVE-2025-64676 | Microsoft Purview eDiscovery 원격 코드 실행 취약성 | | Azure Cosmos DB | CVE-2025-64675 | Azure Cosmos DB 스푸핑 취약성 | |

Official advisory ↗
NCSC-NL · Dutch · NCSC-2026-0007Kwetsbaarheden verholpen in Microsoft Windows

Een kwaadwillende kan de kwetsbaarheden misbruiken om aanvallen uit te voeren die kunnen leiden tot de volgende categoriën schade: - Denial-of-Service (DoS) - Manipulatie van gegevens - Toegang tot gevoelige gegevens - Uitvoeren van willekeurige code (gebruikersrechten) - Uitvoeren van willekeurige code (root/admin) - Verkrijgen van verhoogde rechten - Omzeilen van een beveiligingsmaatregel - Spoofing Van de kwetsbaarheid met kenmerk CVE-2026-21265 meldt Microsoft informatie te hebben dat deze publiekelijk besproken wordt op fora. Een kwaadwillende kan de kwetsbaarheid misbruiken om Secure Boot te omzeilen. Misbruik is echter niet eenvoudig, vereist voorafgaande verhoogde rechten en een diepgaande kennis van het te compromitteren systeem. Grootschalig misbruik is hiermee zeer onwaarschijnlijk. Van de kwetsbaarheid met kenmerk CVE-2026-20805 meldt Microsoft dat deze als zeroday-kwetsbaarheid is misbruikt. Misbruik vereist lokale toegang en voorafgaande gebruikersauthenticatie. Verdere informatie is niet bekend gesteld. Grootschalig misbruik is niet waarschijnlijk. De kwetsbaarheid met kenmerk CVE-2023-31096 is een oudere kwetsbaarheid in Broadcom modem drivers, zoals gebruikt in de (verouderde) Agere modems. Hiervan is al langer Proof-of-Concept-code bekend, maar grootschalig misbruik heeft voor zover bekend nog niet plaatsgevonden. Microsoft heeft in deze update de drivers verwijderd. Een kwaadwillende kan deze kwetsbaarheid met kenmerk CVE-2026-20817 misbruiken doordat Windows Error Reporting onvoldoende controle uitvoert op rechten en privileges, waardoor een geautoriseerde aanvaller lokaal zijn rechten kan verhogen. Voor deze kwetsbaarheid is Proof-of-Concept-Code (PoC) verschenen. Het NCSC verwacht een toename in scan- en misbruikverkeer, waardoor de kans op misbruik kan toenemen. ``` Windows Remote Assistance: |----------------|------|-------------------------------------| | CVE-ID | CVSS | Impact | |----------------|------|-------------------------------------| | CVE-2026-20824 | 5.50 | Omzeilen van beveiligingsmaatregel | |----------------|------|-------------------------------------| Capability Access Management Service (camsvc): |----------------|------|-------------------------------------| | CVE-ID | CVSS | Impact | |----------------|------|-------------------------------------| | CVE-2026-20815 | 7.00 | Verkrijgen van verhoogde rechten | | CVE-2026-20835 | 5.50 | Toegang tot gevoelige gegevens | | CVE-2026-20851 | 6.20 | Toegang tot gevoelige gegevens | | CVE-2026-20830 | 7.00 | Verkrijgen van verhoogde rechten | | CVE-2026-21221 | 7.00 | Verkrijgen van verhoogde rechten | |----------------|------|-------------------------------------| Windows Media: |----------------|------|-------------------------------------| | CVE-ID | CVSS | Impact | |----------------|------|-------------------------------------| | CVE-2026-20837 | 7.80 | Uitvoeren van willekeurige code | |----------------|------|-------------------------------------| Windows Local Session Manager (LSM): |----------------|------|-------------------------------------| | CVE-ID | CVSS | Impact | |----------------|------|-------------------------------------| | CVE-2026-20869 | 7.00 | Verkrijgen van verhoogde rechten | |----------------|------|-------------------------------------| Windows NDIS: |----------------|------|-------------------------------------| | CVE-ID | CVSS | Impact | |----------------|------|-------------------------------------| | CVE-2026-20936 | 4.30 | Toegang tot gevoelige gegevens | |----------------|------|-------------------------------------| Windows Management Services: |----------------|------|-------------------------------------| | CVE-ID | CVSS | Impact | |----------------|------|-------------------------------------| | CVE-2026-20858 | 7.80 | Verkrijgen van verhoogde rechten | | CVE-2026-20865 | 7.80 | Verkrijgen van verhoogde rechten | | CVE-2026-20877 | 7.80 | Verkrijgen van verhoogde rechten | | CVE-2026-20918 | 7.80 | Verkrijgen van verhoogde rechten | | CVE-2026-20923 | 7.80 | Verkrijgen van verhoogde rechten | | CVE-2026-20924 | 7.80 | Verkrijgen van verhoogde rechten | | CVE-2026-20861 | 7.80 | Verkrijgen van verhoogde rechten | | CVE-2026-20862 | 5.50 | Toegang tot gevoelige gegevens | | CVE-2026-20866 | 7.80 | Verkrijgen van verhoogde rechten | | CVE-2026-20867 | 7.80 | Verkrijgen van verhoogde rechten | | CVE-2026-20873 | 7.80 | Verkrijgen van verhoogde rechten | | CVE-2026-20874 | 7.80 | Verkrijgen van verhoogde rechten | |----------------|------|-------------------------------------| Windows Client-Side Caching (CSC) Service: |----------------|------|-------------------------------------| | CVE-ID | CVSS | Impact | |----------------|------|-------------------------------------| | CVE-2026-20839 | 5.50 | Toegang tot gevoelige gegevens | |----------------|------|-------------------------------------| Host Process for Windows Tasks: |----------------|------|-------------------------------------| | CVE-ID | CVSS | Impact | |----------------|------|-------------------------------------| | CVE-2026-20941 | 7.80 | Verkrijgen van verhoogde rechten | |----------------|------|-------------------------------------| Graphics Kernel: |----------------|------|-------------------------------------| | CVE-ID | CVSS | Impact | |----------------|------|-------------------------------------| | CVE-2026-20814 | 7.00 | Verkrijgen van verhoogde rechten | | CVE-2026-20836 | 7.00 | Verkrijgen van verhoogde rechten | |----------------|------|-------------------------------------| Windows NTLM: |----------------|------|-------------------------------------| | CVE-ID | CVSS | Impact | |----------------|------|-------------------------------------| | CVE-2026-20925 | 6.50 | Voordoen als andere gebruiker | | CVE-2026-20872 | 6.50 | Voordoen als andere gebruiker | |----------------|------|-------------------------------------| Windows Ancillary Function Driver for WinSock: |----------------|------|-------------------------------------| | CVE-ID | CVSS | Impact | |----------------|------|-------------------------------------| | CVE-2026-20810 | 7.80 | Verkrijgen van verhoogde rechten | | CVE-2026-20831 | 7.00 | Verkrijgen van verhoogde rechten | | CVE-2026-20860 | 7.80 | Verkrijgen van verhoogde rechten | |----------------|------|-------------------------------------| Printer Association Object: |----------------|------|-------------------------------------| | CVE-ID | CVSS | Impact | |----------------|------|-------------------------------------| | CVE-2026-20808 | 7.00 | Verkrijgen van verhoogde rechten | |----------------|------|-------------------------------------| Windows Local Security Authority Subsystem Service (LSASS): |----------------|------|-------------------------------------| | CVE-ID | CVSS | Impact | |----------------|------|-------------------------------------| | CVE-2026-20875 | 7.50 | Denial-of-Service | | CVE-2026-20854 | 7.50 | Uitvoeren van willekeurige code | |----------------|------|-------------------------------------| Windows Kernel: |----------------|------|-------------------------------------| | CVE-ID | CVSS | Impact | |----------------|------|-------------------------------------| | CVE-2026-20818 | 6.20 | Toegang tot gevoelige gegevens | | CVE-2026-20838 | 5.50 | Toegang tot gevoelige gegevens | |----------------|------|-------------------------------------| Windows Secure Boot: |----------------|------|-------------------------------------| | CVE-ID | CVSS | Impact | |----------------|------|-------------------------------------| | CVE-2026-21265 | 6.40 | Omzeilen van beveiligingsmaatregel | |----------------|------|-------------------------------------| Windows Error Reporting: |----------------|------|-------------------------------------| | CVE-ID | CVSS | Impact | |----------------|------|-------------------------------------| | CVE-2026-20817 | 7.80 | Verkrijgen van verhoogde rechten | |----------------|------|-------------------------------------| Windows Kernel-Mode Drivers: |----------------|------|-------------------------------------| | CVE-ID | CVSS | Impact | |----------------|------|-------------------------------------| | CVE-2026-20859 | 7.80 | Verkrijgen van verhoogde rechten | |----------------|------|-------------------------------------| Windows Remote Procedure Call: |----------------|------|-------------------------------------| | CVE-ID | CVSS | Impact | |----------------|------|-------------------------------------| | CVE-2026-20821 | 6.20 | Toegang tot gevoelige gegevens | |----------------|------|-------------------------------------| Dynamic Root of Trust for Measurement (DRTM): |----------------|------|-------------------------------------| | CVE-ID | CVSS | Impact | |----------------|------|-------------------------------------| | CVE-2026-20962 | 4.40 | Toegang tot gevoelige gegevens | |----------------|------|-------------------------------------| Windows Telephony Service: |----------------|------|-------------------------------------| | CVE-ID | CVSS | Impact | |----------------|------|-------------------------------------| | CVE-2026-20931 | 8.00 | Verkrijgen van verhoogde rechten | |----------------|------|-------------------------------------| Windows Installer: |----------------|------|-------------------------------------| | CVE-ID | CVSS | Impact | |----------------|------|-------------------------------------| | CVE-2026-20816 | 7.80 | Verkrijgen van verhoogde rechten | |----------------|------|-------------------------------------| Microsoft Graphics Component: |----------------|------|-------------------------------------| | CVE-ID | CVSS | Impact | |----------------|------|-------------------------------------| | CVE-2026-20822 | 7.80 | Verkrijgen van verhoogde rechten | |----------------|------|-------------------------------------| Windows Hello: |----------------|------|-------------------------------------| | CVE-ID | CVSS | Impact | |----------------|------|-------------------------------------| | CVE-2026-20804 | 7.70 | | | CVE-2026-20852 | 7.70 | | |----------------|------|-------------------------------------| Windows WalletService: |----------------|------|-------------------------------------| | CVE-ID | CVSS | Impact | |----------------|------|-------------------------------------| | CVE-2026-20853 | 7.40 | Verkrijgen van verhoogde rechten | |----------------|------|-------------------------------------| Desktop Window Manager: |----------------|------|-------------------------------------| | CVE-ID | CVSS | Impact | |----------------|------|-------------------------------------| | CVE-2026-20805 | 5.50 | Toegang tot gevoelige gegevens | | CVE-2026-20871 | 7.80 | Verkrijgen van verhoogde rechten | |----------------|------|-------------------------------------| Connected Devices Platform Service (Cdpsvc): |----------------|------|-------------------------------------| | CVE-ID | CVSS | Impact | |----------------|------|-------------------------------------| | CVE-2026-20864 | 7.80 | Verkrijgen van verhoogde rechten | |----------------|------|-------------------------------------| Windows Internet Connection Sharing (ICS): |----------------|------|-------------------------------------| | CVE-ID | CVSS | Impact | |----------------|------|-------------------------------------| | CVE-2026-20828 | 4.60 | Toegang tot gevoelige gegevens | |----------------|------|-------------------------------------| Windows Kerberos: |----------------|------|-------------------------------------| | CVE-ID | CVSS | Impact | |----------------|------|-------------------------------------| | CVE-2026-20833 | 5.50 | Toegang tot gevoelige gegevens | | CVE-2026-20849 | 7.50 | Verkrijgen van verhoogde rechten | |----------------|------|-------------------------------------| Windows Motorola Soft Modem Driver: |----------------|------|-------------------------------------| | CVE-ID | CVSS | Impact | |----------------|------|-------------------------------------| | CVE-2024-55414 | 7.80 | Verkrijgen van verhoogde rechten | |----------------|------|-------------------------------------| Windows Routing and Remote Access Service (RRAS): |----------------|------|-------------------------------------| | CVE-ID | CVSS | Impact | |----------------|------|-------------------------------------| | CVE-2026-20843 | 7.80 | Verkrijgen van verhoogde rechten | | CVE-2026-20868 | 8.80 | Uitvoeren van willekeurige code | |----------------|------|-------------------------------------| Windows NTFS: |----------------|------|-------------------------------------| | CVE-ID | CVSS | Impact | |----------------|------|-------------------------------------| | CVE-2026-20840 | 7.80 | Uitvoeren van willekeurige code | | CVE-2026-20922 | 7.80 | Uitvoeren van willekeurige code | |----------------|------|-------------------------------------| Windows DWM: |----------------|------|-------------------------------------| | CVE-ID | CVSS | Impact | |----------------|------|-------------------------------------| | CVE-2026-20842 | 7.00 | Verkrijgen van verhoogde rechten | |----------------|------|-------------------------------------| Windows Hyper-V: |----------------|------|-------------------------------------| | CVE-ID | CVSS | Impact | |----------------|------|-------------------------------------| | CVE-2026-20825 | 4.40 | Toegang tot gevoelige gegevens | |----------------|------|-------------------------------------| Windows Kernel Memory: |----------------|------|-------------------------------------| | CVE-ID | CVSS | Impact | |----------------|------|-------------------------------------| | CVE-2026-20809 | 7.80 | Verkrijgen van verhoogde rechten | |----------------|------|-------------------------------------| Windows Server Update Service: |----------------|------|-------------------------------------| | CVE-ID | CVSS | Impact | |----------------|------|-------------------------------------| | CVE-2026-20856 | 8.10 | Uitvoeren van willekeurige code | |----------------|------|-------------------------------------| Windows File Explorer: |----------------|------|-------------------------------------| | CVE-ID | CVSS | Impact | |----------------|------|-------------------------------------| | CVE-2026-20823 | 5.50 | Toegang tot gevoelige gegevens | | CVE-2026-20932 | 5.50 | Toegang tot gevoelige gegevens | | CVE-2026-20937 | 5.50 | Toegang tot gevoelige gegevens | | CVE-2026-20939 | 5.50 | Toegang tot gevoelige gegevens | |----------------|------|-------------------------------------| Windows TPM: |----------------|------|-------------------------------------| | CVE-ID | CVSS | Impact | |----------------|------|-------------------------------------| | CVE-2026-20829 | 5.50 | Toegang tot gevoelige gegevens | |----------------|------|-------------------------------------| Windows Clipboard Server: |----------------|------|-------------------------------------| | CVE-ID | CVSS | Impact | |----------------|------|-------------------------------------| | CVE-2026-20844 | 7.40 | Verkrijgen van verhoogde rechten | |----------------|------|-------------------------------------| Windows Remote Procedure Call Interface Definition Language (IDL): |----------------|------|-------------------------------------| | CVE-ID | CVSS | Impact | |----------------|------|-------------------------------------| | CVE-2026-20832 | 7.80 | Verkrijgen van verhoogde rechten | |----------------|------|-------------------------------------| Windows Common Log File System Driver: |----------------|------|-------------------------------------| | CVE-ID | CVSS | Impact | |----------------|------|-------------------------------------| | CVE-2026-20820 | 7.80 | Verkrijgen van verhoogde rechten | |----------------|------|-------------------------------------| Windows Cloud Files Mini Filter Driver: |----------------|------|-------------------------------------| | CVE-ID | CVSS | Impact | |----------------|------|-------------------------------------| | CVE-2026-20857 | 7.80 | Verkrijgen van verhoogde rechten | | CVE-2026-20940 | 7.80 | Verkrijgen van verhoogde rechten | |----------------|------|-------------------------------------| Windows Win32K - ICOMP: |----------------|------|-------------------------------------| | CVE-ID | CVSS | Impact | |----------------|------|-------------------------------------| | CVE-2026-20811 | 7.80 | Verkrijgen van verhoogde rechten | | CVE-2026-20920 | 7.80 | Verkrijgen van verhoogde rechten | | CVE-2026-20863 | 7.00 | Verkrijgen van verhoogde rechten | | CVE-2026-20870 | 7.80 | Verkrijgen van verhoogde rechten | |----------------|------|-------------------------------------| Windows Virtualization-Based Security (VBS) Enclave: |----------------|------|-------------------------------------| | CVE-ID | CVSS | Impact | |----------------|------|-------------------------------------| | CVE-2026-20819 | 5.50 | Toegang tot gevoelige gegevens | | CVE-2026-20876 | 6.70 | Verkrijgen van verhoogde rechten | | CVE-2026-20938 | 7.80 | Verkrijgen van verhoogde rechten | | CVE-2026-20935 | 6.20 | Toegang tot gevoelige gegevens | |----------------|------|-------------------------------------| Agere Windows Modem Driver: |----------------|------|-------------------------------------| | CVE-ID | CVSS | Impact | |----------------|------|-------------------------------------| | CVE-2023-31096 | 7.80 | Verkrijgen van verhoogde rechten | |----------------|------|-------------------------------------| Windows LDAP - Lightweight Directory Access Protocol: |----------------|------|-------------------------------------| | CVE-ID | CVSS | Impact | |----------------|------|-------------------------------------| | CVE-2026-20812 | 6.50 | | |----------------|------|-------------------------------------| Windows HTTP.sys: |----------------|------|-------------------------------------| | CVE-ID | CVSS | Impact | |----------------|------|-------------------------------------| | CVE-2026-20929 | 7.50 | Verkrijgen van verhoogde rechten | |----------------|------|-------------------------------------| Windows Deployment Services: |----------------|------|-------------------------------------| | CVE-ID | CVSS | Impact | |----------------|------|-------------------------------------| | CVE-2026-0386 | 7.50 | Uitvoeren van willekeurige code | |----------------|------|-------------------------------------| Tablet Windows User Interface (TWINUI) Subsystem: |----------------|------|-------------------------------------| | CVE-ID | CVSS | Impact | |----------------|------|-------------------------------------| | CVE-2026-20826 | 7.80 | Verkrijgen van verhoogde rechten | | CVE-2026-20827 | 5.50 | Toegang tot gevoelige gegevens | |----------------|------|-------------------------------------| Windows SMB Server: |----------------|------|-------------------------------------| | CVE-ID | CVSS | Impact | |----------------|------|-------------------------------------| | CVE-2026-20919 | 7.50 | Verkrijgen van verhoogde rechten | | CVE-2026-20921 | 7.50 | Verkrijgen van verhoogde rechten | | CVE-2026-20926 | 7.50 | Verkrijgen van verhoogde rechten | | CVE-2026-20927 | 5.30 | Denial-of-Service | | CVE-2026-20934 | 7.50 | Verkrijgen van verhoogde rechten | | CVE-2026-20848 | 7.50 | Verkrijgen van verhoogde rechten | |----------------|------|-------------------------------------| Windows Shell: |----------------|------|-------------------------------------| | CVE-ID | CVSS | Impact | |----------------|------|-------------------------------------| | CVE-2026-20834 | 4.60 | Voordoen als andere gebruiker | | CVE-2026-20847 | 6.50 | Voordoen als andere gebruiker | |----------------|------|-------------------------------------| ```

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. Limit untrusted access and use least privilege until authoritative guidance is available.
04

Evidence and provenance

Published 13 Jan 2026 · Last source change 30 Jul 2026, 20:46 UTC · CWE-284 · Improper Access Control

CVE recordCVE.org · 5.2
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-2026-2206
Product sourceCNA
Remediation sourceCVE/CNA references
CWE sourceOther authority
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 ↗

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
CVE published
ENISA EUVD · EUVD-2026-2206↗CVE authority or vendor 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-2026-0386 · cve.blacktree.nl