CVE-2026-83798

mediumPriorität · verfolgen · 22EPSS 0.002 · 11. PerzentilDEFRUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.21% (11th) EPSS

CVSS 5.5 · medium

Is it mine?

73 products

Prüfe deine Angriffsfläche

Who says so?

3 sources

cert_bund · msrc_csaf · certfr

EPSS · bewertet 2026-10-24

Improper verification of cryptographic signature in Windows Update Stack allows an authorized attacker to perform spoofing locally.

Behebungen

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

Ein Hersteller-Fix ist verfügbar.

BehobenWindows 10 Version 1607 for 32-bit Systemsmsrc_csaf
10.0.14393.9612:Security Update:https://support.microsoft.com/help/5126868
https://support.microsoft.com/help/5126868
BehobenWindows 10 Version 1607 for x64-based Systemsmsrc_csaf
10.0.14393.9612:Security Update:https://support.microsoft.com/help/5126868
https://support.microsoft.com/help/5126868
BehobenWindows 10 Version 1809 for 32-bit Systemsmsrc_csaf
10.0.17763.9376:Security Update:https://support.microsoft.com/help/5126651
https://support.microsoft.com/help/5126651
BehobenWindows 10 Version 1809 for x64-based Systemsmsrc_csaf
10.0.17763.9376:Security Update:https://support.microsoft.com/help/5126651
https://support.microsoft.com/help/5126651
BehobenWindows 10 Version 21H2 for 32-bit Systemsmsrc_csaf
10.0.19044.7807:Security Update:https://support.microsoft.com/help/5126657
https://support.microsoft.com/help/5126657
BehobenWindows 10 Version 21H2 for ARM64-based Systemsmsrc_csaf
10.0.19044.7807:Security Update:https://support.microsoft.com/help/5126657
https://support.microsoft.com/help/5126657
BehobenWindows 10 Version 21H2 for x64-based Systemsmsrc_csaf
10.0.19044.7807:Security Update:https://support.microsoft.com/help/5126657
https://support.microsoft.com/help/5126657
BehobenWindows 10 Version 22H2 for 32-bit Systemsmsrc_csaf
10.0.19045.7807:Security Update:https://support.microsoft.com/help/5126657
https://support.microsoft.com/help/5126657
BehobenWindows 10 Version 22H2 for ARM64-based Systemsmsrc_csaf
10.0.19045.7807:Security Update:https://support.microsoft.com/help/5126657
https://support.microsoft.com/help/5126657
BehobenWindows 10 Version 22H2 for x64-based Systemsmsrc_csaf
10.0.19045.7807:Security Update:https://support.microsoft.com/help/5126657
https://support.microsoft.com/help/5126657
BehobenWindows 11 Version 23H2 for ARM64-based Systemsmsrc_csaf
10.0.22631.7652:Security Update:https://support.microsoft.com/help/5126653
https://support.microsoft.com/help/5126653
BehobenWindows 11 Version 23H2 for x64-based Systemsmsrc_csaf
10.0.22631.7652:Security Update:https://support.microsoft.com/help/5126653
https://support.microsoft.com/help/5126653
BehobenWindows 11 Version 24H2 for ARM64-based Systemsmsrc_csaf
10.0.26100.9711:Security Update:https://support.microsoft.com/help/5127648
https://support.microsoft.com/help/5127648
BehobenWindows 11 Version 24H2 for x64-based Systemsmsrc_csaf
10.0.26100.9711:Security Update:https://support.microsoft.com/help/5127648
https://support.microsoft.com/help/5127648
BehobenWindows 11 Version 25H2 for ARM64-based Systemsmsrc_csaf
10.0.26200.9711:Security Update:https://support.microsoft.com/help/5127648
https://support.microsoft.com/help/5127648
BehobenWindows 11 Version 25H2 for x64-based Systemsmsrc_csaf
10.0.26200.9711:Security Update:https://support.microsoft.com/help/5127648
https://support.microsoft.com/help/5127648
BehobenWindows 11 Version 26H1 for ARM64-based Systemsmsrc_csaf
10.0.28000.3231:Security Update:https://support.microsoft.com/help/5127646
https://support.microsoft.com/help/5127646
BehobenWindows 11 Version 26H2 for ARM64-based Systemsmsrc_csaf
10.0.26300.9711:Security Update:https://support.microsoft.com/help/5127648
https://support.microsoft.com/help/5127648
BehobenWindows 11 Version 26H2 for x64-based Systemsmsrc_csaf
10.0.26300.9711:Security Update:https://support.microsoft.com/help/5127648
https://support.microsoft.com/help/5127648
BehobenWindows 11 version 26H1 for x64-based Systemsmsrc_csaf
10.0.28000.3231:Security Update:https://support.microsoft.com/help/5127646
https://support.microsoft.com/help/5127646
BehobenWindows Server 2012msrc_csaf
6.2.9200.26434:Security Update:https://support.microsoft.com/help/5126835
https://support.microsoft.com/help/5126835
BehobenWindows Server 2012 (Server Core installation)msrc_csaf
6.2.9200.26434:Security Update:https://support.microsoft.com/help/5126835
https://support.microsoft.com/help/5126835
BehobenWindows Server 2012 R2msrc_csaf
6.3.9600.23470:Security Update:https://support.microsoft.com/help/5126836
https://support.microsoft.com/help/5126836
BehobenWindows Server 2012 R2 (Server Core installation)msrc_csaf
6.3.9600.23470:Security Update:https://support.microsoft.com/help/5126836
https://support.microsoft.com/help/5126836
BehobenWindows Server 2016msrc_csaf
10.0.14393.9612:Security Update:https://support.microsoft.com/help/5126868
https://support.microsoft.com/help/5126868
BehobenWindows Server 2016 (Server Core installation)msrc_csaf
10.0.14393.9612:Security Update:https://support.microsoft.com/help/5126868
https://support.microsoft.com/help/5126868
BehobenWindows Server 2019msrc_csaf
10.0.17763.9376:Security Update:https://support.microsoft.com/help/5126651
https://support.microsoft.com/help/5126651
BehobenWindows Server 2019 (Server Core installation)msrc_csaf
10.0.17763.9376:Security Update:https://support.microsoft.com/help/5126651
https://support.microsoft.com/help/5126651
BehobenWindows Server 2022msrc_csaf
10.0.20348.5761:Security Update:https://support.microsoft.com/help/5126655
https://support.microsoft.com/help/5126655
BehobenWindows Server 2022 (Server Core installation)msrc_csaf
10.0.20348.5761:Security Update:https://support.microsoft.com/help/5126655
https://support.microsoft.com/help/5126655
BehobenWindows Server 2025msrc_csaf
10.0.26100.33650:Security Update:https://support.microsoft.com/help/5126646
https://support.microsoft.com/help/5126646
BehobenWindows Server 2025 (Server Core installation)msrc_csaf
10.0.26100.33650:Security Update:https://support.microsoft.com/help/5126646
https://support.microsoft.com/help/5126646

cvss

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

5.5

010

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

v3.15.5mediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:Nprimary · secure@microsoft.com USAusnutzbarkeit 1.8 · Auswirkung 3.6

v3.15.1mediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N/E:Usecondary · CVSS-BT (t0sche)

v3.15.5mediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N/E:U/RL:O/RC:Csecondary · Microsoft Security Response Center US

SSVC

Eine Handlungsentscheidung — aus Ausnutzung und Auswirkung.

Trackcoordinatorcisa_ssvcUS

schwächen

Die CWE-Schwächeklassen, zu denen dies gehört.

CWE-20USCWE-20USCWE-347USCWE-347USCWE-347US

betroffene Produkte (73)

Betroffene Produkte und Versionsbereiche.

Microsoft Windows 10alle Versionencert_bundDEcpe:/o:microsoft:windows_10:-
Microsoft Windows 11alle Versionencert_bundDEcpe:/o:microsoft:windows_11:-
Microsoft Windows Security Appalle Versionencert_bundDEcpe:/o:microsoft:windows:security_app
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 Windows 10 Version 1607 for 32-bit Systemsalle Versionenfixedmsrc_csafUS
Microsoft Windows 10 Version 1607 for 32-bit Systems< 10.0.14393.9612msrc_csafUS
Microsoft Windows 10 Version 1607 for x64-based Systemsalle Versionenfixedmsrc_csafUS
Microsoft Windows 10 Version 1607 for x64-based Systems< 10.0.14393.9612msrc_csafUS
Microsoft Windows 10 Version 1809 for 32-bit Systemsalle Versionenfixedmsrc_csafUS
Microsoft Windows 10 Version 1809 for 32-bit Systems< 10.0.17763.9376msrc_csafUS
Microsoft Windows 10 Version 1809 for x64-based Systemsalle Versionenfixedmsrc_csafUS
Microsoft Windows 10 Version 1809 for x64-based Systems< 10.0.17763.9376msrc_csafUS
Microsoft Windows 10 Version 21H2 for 32-bit Systemsalle Versionenfixedmsrc_csafUS
Microsoft Windows 10 Version 21H2 for 32-bit Systems< 10.0.19044.7807msrc_csafUS
Microsoft Windows 10 Version 21H2 for ARM64-based Systemsalle Versionenfixedmsrc_csafUS

20 von 73 angezeigt

Advisories (3)

Hersteller- und Ökosystem-Meldungen dazu.

WID-SEC-W-2026-3892Microsoft Windows und Windows Server: Mehrere SchwachstellenDeutsch2026-10-13csaf · cert_bundDE
Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in verschiedenen Versionen von Microsoft Windows Server und Microsoft Windows ausnutzen, um seine Privilegien auf administrative Rechte zu erhöhen, um beliebigen Code auszuführen, um Informationen offenzulegen, um einen Denial of Service herbeizuführen, um den Benutzer zu täuschen und andere, nicht näher spezifizierte Auswirkungen zu verursachen.
msrc_CVE-2026-83798Windows Update Stack Spoofing Vulnerability2026-10-13csaf · msrc_csafUS
To determine the support lifecycle for your software, see the Microsoft Support Lifecycle: https://support.microsoft.com/lifecycle
CERTFR-2026-AVI-1314Multiples vulnérabilités dans Microsoft WindowsFrançais2026-10-14vendor · certfrFR

quellen

Welche Quellen diesen Datensatz belegen und wann.

cert_bund msrc_csaf certfr NVD CVE.org MITRE

veröffentlicht 2026-10-13geändert 2026-10-16

Referenzen (1) nvd

Externe Belege — Patches, Meldungen, Analysen.

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-83798

scry

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

Kostenloser Scan