CVE-2026-81963

highPriorität · handeln · 90OT-Risiko · kritischKEV · ausgenutztEPSS 0.004 · 32. PerzentilExploit · PoCDENLRUUS

grimoire priorityP0 · Act now

Exploitable?

Yes · in the wild

CISA KEV · 1 exploit · PoC

Likely / severe?

0.39% (32nd) EPSS

CVSS 7.8 · high

Is it mine?

77 products

Prüfe deine Angriffsfläche

Who says so?

4 sources

fstec_bdu · cert_bund · msrc_csaf · ncsc_nl

hinzugefügt 2026-09-08beheben bis 2026-09-22

erforderliche Maßnahme Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.

EPSS · bewertet 2026-10-22

Microsoft Windows Link Following Vulnerability

Improper link resolution before file access ('link following') in Windows Update Stack allows an authorized attacker to elevate privileges locally.

Behebungen

Hersteller-Fix, Mitigation oder Workaround, wie von den Quellen veröffentlicht.

Ein Hersteller-Fix ist verfügbar.

BehobenWindows 11 Version 23H2 for ARM64-based Systemsmsrc_csaf
10.0.22631.7582:Security Update:https://support.microsoft.com/help/5122880
https://support.microsoft.com/help/5122880
BehobenWindows 11 Version 23H2 for x64-based Systemsmsrc_csaf
10.0.22631.7582:Security Update:https://support.microsoft.com/help/5122880
https://support.microsoft.com/help/5122880
BehobenWindows 11 Version 24H2 for ARM64-based Systemsmsrc_csaf
10.0.26100.9445:Security Update:https://support.microsoft.com/help/5124008
https://support.microsoft.com/help/5124008
BehobenWindows 11 Version 24H2 for x64-based Systemsmsrc_csaf
10.0.26100.9445:Security Update:https://support.microsoft.com/help/5124008
https://support.microsoft.com/help/5124008
BehobenWindows 11 Version 25H2 for ARM64-based Systemsmsrc_csaf
10.0.26200.9445:Security Update:https://support.microsoft.com/help/5124008
https://support.microsoft.com/help/5124008
BehobenWindows 11 Version 25H2 for x64-based Systemsmsrc_csaf
10.0.26200.9445:Security Update:https://support.microsoft.com/help/5124008
https://support.microsoft.com/help/5124008
BehobenWindows 11 Version 26H1 for ARM64-based Systemsmsrc_csaf
10.0.28000.2954:Security Update:https://support.microsoft.com/help/5124012
https://support.microsoft.com/help/5124012
BehobenWindows 11 version 26H1 for x64-based Systemsmsrc_csaf
10.0.28000.2954:Security Update:https://support.microsoft.com/help/5124012
https://support.microsoft.com/help/5124012
BehobenWindows Server 2025msrc_csaf
10.0.26100.33438:Security Update:https://support.microsoft.com/help/5122871
https://support.microsoft.com/help/5122871
BehobenWindows Server 2025 (Server Core installation)msrc_csaf
10.0.26100.33438:Security Update:https://support.microsoft.com/help/5122871
https://support.microsoft.com/help/5122871

cvss

Technischer Schweregrad, 0–10. Eine Zeile je Quelle.

7.8

010

Basiswert 0–10 · höher = schwerwiegender · Vektor überfahren zum Auflösen

v3.17.8highCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Hprimary · secure@microsoft.com USAusnutzbarkeit 1.8 · Auswirkung 5.9

v3.17.8highAV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Hsecondary · FSTEC (BDU) RU

v3.17.8highCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:Hsecondary · CVSS-BT (t0sche)

v3.17.8highCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:F/RL:O/RC:Csecondary · NCSC-NL NL

v3.17.8highCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:F/RL:O/RC:Csecondary · Microsoft Security Response Center US

SSVC

Eine Handlungsentscheidung — aus Ausnutzung und Auswirkung.

Exploitation: active · Automatable: no · Technical Impact: totalcoordinatorcisa_ssvcUS

schwächen

Die CWE-Schwächeklassen, zu denen dies gehört.

CWE-284USCWE-284USCWE-59USCWE-59USCWE-59USCWE-59US

Exploits (1)

Öffentlicher Proof-of-Concept- und Exploit-Code.

rsah35404-star/stunning-octo-doodle CVE-2026-81963 - It is rated as "Important" by Microsoft. CVE-2026-85880 - CVE-2026-69414 - PoC · poc_in_github

betroffene Produkte (77)

Betroffene Produkte und Versionsbereiche.

Microsoft Windows 10alle Versionencert_bundDEcpe:/o:microsoft:windows_10:-
Microsoft Windows 11alle Versionencert_bundDEcpe:/o:microsoft:windows_11:-
Microsoft Windows Server 2012alle Versionencert_bundDEcpe:/o:microsoft:windows_server_2012:-
Microsoft Windows Server 2012 R2alle Versionencert_bundDEcpe:/o:microsoft:windows_server_2012_r2:-
Microsoft Windows Server 2016alle Versionencert_bundDEcpe:/o:microsoft:windows_server_2016:-
Microsoft Windows Server 2019alle Versionencert_bundDEcpe:/o:microsoft:windows_server_2019:-
Microsoft Windows Server 2022alle Versionencert_bundDEcpe:/o:microsoft:windows_server_2022:-
Microsoft Windows Server 2025alle Versionencert_bundDEcpe:/o:microsoft:windows_server_2025:-
Microsoft Corp Windows 11 23H2≤ 10.0.22631.7582fstec_bduRU
Microsoft Corp Windows 11 24H2≤ 10.0.26100.9445fstec_bduRU
Microsoft Corp Windows 11 25H2≤ 10.0.26200.9445fstec_bduRU
Microsoft Corp Windows 11 26H1≤ 10.0.28000.2954fstec_bduRU
Microsoft Corp Windows Server 2025≤ 10.0.26100.33438fstec_bduRU
Microsoft Corp Windows Server 2025 (Server Core installation)≤ 10.0.26100.33438fstec_bduRU
Microsoft Windows 11 Version 23H2 for ARM64-based Systemsalle Versionenfixedmsrc_csafUS
Microsoft Windows 11 Version 23H2 for ARM64-based Systems< 10.0.22631.7582msrc_csafUS
Microsoft Windows 11 Version 23H2 for x64-based Systemsalle Versionenfixedmsrc_csafUS
Microsoft Windows 11 Version 23H2 for x64-based Systems< 10.0.22631.7582msrc_csafUS
Microsoft Windows 11 Version 24H2 for ARM64-based Systemsalle Versionenfixedmsrc_csafUS
Microsoft Windows 11 Version 24H2 for ARM64-based Systems< 10.0.26100.9445msrc_csafUS

20 von 77 angezeigt

Advisories (3)

Hersteller- und Ökosystem-Meldungen dazu.

NCSC-2026-0353Kwetsbaarheden verholpen in Microsoft WindowsNL2026-09-08csaf · ncsc_nlNL
Microsoft heeft 666 kwetsbaarheden verholpen in Windows.
WID-SEC-W-2026-3243Microsoft Windows: Mehrere SchwachstellenDeutsch2026-09-08csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in verschiedenen Versionen von Microsoft Windows Server, Microsoft Windows 10 und Microsoft Windows 11 ausnutzen, um seine Privilegien zu erhöhen, um einen Denial of Service herbeizuführen, um Informationen offenzulegen und um beliebigen Code auszuführen.
msrc_CVE-2026-81963Windows Update Stack Elevation of Privilege Vulnerability2026-09-08csaf · msrc_csafUS
To determine the support lifecycle for your software, see the Microsoft Support Lifecycle: https://support.microsoft.com/lifecycle

auch bekannt als (1)

Weitere Namen und Kennungen dieser Entität.

BDU:2026-14307 fstec_bdu

quellen

Welche Quellen diesen Datensatz belegen und wann.

fstec_bdu cert_bund msrc_csaf ncsc_nl NVD CVE.org MITRE

veröffentlicht 2026-09-08geändert 2026-09-09

Referenzen (2) nvd

Externe Belege — Patches, Meldungen, Analysen.

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-81963PatchVendor Advisory
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-81963US Government Resource

scry

Angreifer nutzen Schwachstellen wie diese gegen im Internet exponierte Dienste aus. Sehen Sie mit einem kostenlosen Passiv-Scan, was exponiert ist.

Kostenloser Scan