CVE-2026-21508

highPriorität · verfolgen · 38EPSS 0.005 · 39. PerzentilExploit · PoCDEEUJPNLRUUS

grimoire priorityP1 · Urgent

Exploitable?

Public exploit

1 exploit · PoC

Likely / severe?

0.45% (39th) EPSS

CVSS 7 · high

Is it mine?

193 products

Prüfe deine Angriffsfläche

Who says so?

7 sources

cnnvd · enisa_euvd · fstec_bdu · cert_bund

EPSS · bewertet 2026-10-27

Improper authentication in Windows Storage 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 10 Version 1607 for 32-bit Systemsmsrc_csaf
10.0.14393.8868:Security Update:https://support.microsoft.com/help/5075999
https://support.microsoft.com/help/5075999
BehobenWindows 10 Version 1607 for x64-based Systemsmsrc_csaf
10.0.14393.8868:Security Update:https://support.microsoft.com/help/5075999
https://support.microsoft.com/help/5075999
BehobenWindows 10 Version 1809 for 32-bit Systemsmsrc_csaf
10.0.17763.8389:Security Update:https://support.microsoft.com/help/5075904
https://support.microsoft.com/help/5075904
BehobenWindows 10 Version 1809 for x64-based Systemsmsrc_csaf
10.0.17763.8389:Security Update:https://support.microsoft.com/help/5075904
https://support.microsoft.com/help/5075904
BehobenWindows 10 Version 21H2 for 32-bit Systemsmsrc_csaf
10.0.19044.6937:Security Update:https://support.microsoft.com/help/5075912
https://support.microsoft.com/help/5075912
BehobenWindows 10 Version 21H2 for ARM64-based Systemsmsrc_csaf
10.0.19044.6937:Security Update:https://support.microsoft.com/help/5075912
https://support.microsoft.com/help/5075912
BehobenWindows 10 Version 21H2 for x64-based Systemsmsrc_csaf
10.0.19044.6937:Security Update:https://support.microsoft.com/help/5075912
https://support.microsoft.com/help/5075912
BehobenWindows 10 Version 22H2 for 32-bit Systemsmsrc_csaf
10.0.19045.6937:Security Update:https://support.microsoft.com/help/5075912
https://support.microsoft.com/help/5075912
BehobenWindows 10 Version 22H2 for ARM64-based Systemsmsrc_csaf
10.0.19045.6937:Security Update:https://support.microsoft.com/help/5075912
https://support.microsoft.com/help/5075912
BehobenWindows 10 Version 22H2 for x64-based Systemsmsrc_csaf
10.0.19045.6937:Security Update:https://support.microsoft.com/help/5075912
https://support.microsoft.com/help/5075912
BehobenWindows 11 Version 23H2 for ARM64-based Systemsmsrc_csaf
10.0.22631.6649:Security Update:https://support.microsoft.com/help/5075941
https://support.microsoft.com/help/5075941
BehobenWindows 11 Version 23H2 for x64-based Systemsmsrc_csaf
10.0.22631.6649:Security Update:https://support.microsoft.com/help/5075941
https://support.microsoft.com/help/5075941
BehobenWindows 11 Version 24H2 for ARM64-based Systemsmsrc_csaf
10.0.26100.7840:Security Update:https://support.microsoft.com/help/5077181
https://support.microsoft.com/help/5077181
BehobenWindows 11 Version 24H2 for x64-based Systemsmsrc_csaf
10.0.26100.7840:Security Update:https://support.microsoft.com/help/5077181
https://support.microsoft.com/help/5077181
BehobenWindows 11 Version 25H2 for ARM64-based Systemsmsrc_csaf
10.0.26200.7840:Security Update:https://support.microsoft.com/help/5077181
https://support.microsoft.com/help/5077181
BehobenWindows 11 Version 25H2 for x64-based Systemsmsrc_csaf
10.0.26200.7840:Security Update:https://support.microsoft.com/help/5077181
https://support.microsoft.com/help/5077181
BehobenWindows 11 Version 26H1 for ARM64-based Systemsmsrc_csaf
10.0.28000.1575:Security Update:https://support.microsoft.com/help/5077179
https://support.microsoft.com/help/5077179
BehobenWindows 11 version 26H1 for x64-based Systemsmsrc_csaf
10.0.28000.1575:Security Update:https://support.microsoft.com/help/5077179
https://support.microsoft.com/help/5077179
BehobenWindows Server 2012msrc_csaf
6.2.9200.25923:Monthly Rollup:https://support.microsoft.com/help/5075971
https://support.microsoft.com/help/5075971
BehobenWindows Server 2012 (Server Core installation)msrc_csaf
6.2.9200.25923:Monthly Rollup:https://support.microsoft.com/help/5075971
https://support.microsoft.com/help/5075971
BehobenWindows Server 2012 R2msrc_csaf
6.3.9600.23022:Monthly Rollup:https://support.microsoft.com/help/5075970
https://support.microsoft.com/help/5075970
BehobenWindows Server 2012 R2 (Server Core installation)msrc_csaf
6.3.9600.23022:Monthly Rollup:https://support.microsoft.com/help/5075970
https://support.microsoft.com/help/5075970
BehobenWindows Server 2016msrc_csaf
10.0.14393.8868:Security Update:https://support.microsoft.com/help/5075999
https://support.microsoft.com/help/5075999
BehobenWindows Server 2016 (Server Core installation)msrc_csaf
10.0.14393.8868:Security Update:https://support.microsoft.com/help/5075999
https://support.microsoft.com/help/5075999
BehobenWindows Server 2019msrc_csaf
10.0.17763.8389:Security Update:https://support.microsoft.com/help/5075904
https://support.microsoft.com/help/5075904
BehobenWindows Server 2019 (Server Core installation)msrc_csaf
10.0.17763.8389:Security Update:https://support.microsoft.com/help/5075904
https://support.microsoft.com/help/5075904
BehobenWindows Server 2022msrc_csaf
10.0.20348.4773:Security Update:https://support.microsoft.com/help/5075906
https://support.microsoft.com/help/5075906
BehobenWindows Server 2022 (Server Core installation)msrc_csaf
10.0.20348.4773:Security Update:https://support.microsoft.com/help/5075906
https://support.microsoft.com/help/5075906
BehobenWindows Server 2022, 23H2 Edition (Server Core installation)msrc_csaf
10.0.25398.2149:Security Update:https://support.microsoft.com/help/5075897
https://support.microsoft.com/help/5075897
BehobenWindows Server 2025msrc_csaf
10.0.26100.32370:Security Update:https://support.microsoft.com/help/5075899
https://support.microsoft.com/help/5075899
BehobenWindows Server 2025 (Server Core installation)msrc_csaf
10.0.26100.32370:Security Update:https://support.microsoft.com/help/5075899
https://support.microsoft.com/help/5075899

cvss

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

7.0

010

Basiswert 0–10 · höher = schwerwiegender · Vektor überfahren zum Auflösen⚠ Quellen uneinig · medium–high · 6.6–7

v3.17highCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USAusnutzbarkeit 1 · Auswirkung 5.9

v3.17highAV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:Hsecondary · FSTEC (BDU) RU

v3.17highCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:Csecondary · ENISA EU

v3.17highCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:Hsecondary · secure@microsoft.com USAusnutzbarkeit 1 · Auswirkung 5.9

v3.16.6mediumCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:Psecondary · CVSS-BT (t0sche)

v3.17highCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:Csecondary · NCSC-NL NL

v3.17highCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:Csecondary · Microsoft Security Response Center US

SSVC

Eine Handlungsentscheidung — aus Ausnutzung und Auswirkung.

Exploitation: none · Automatable: no · Technical Impact: totalcoordinatorcisa_ssvcUS

schwächen

Die CWE-Schwächeklassen, zu denen dies gehört.

CWE-287USCWE-287USCWE-287USCWE-287USCWE-426US

Exploits (1)

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

0xc4r/CVE-2026-21508_POC0xc4r/CVE-2026-21508_POCPoC · poc_in_github

betroffene Produkte (193)

Betroffene Produkte und Versionsbereiche.

Hitachi Storagealle Versionencert_bundDEcpe:/h:hitachi:storage:-
Microsoft Exchange Server 2016 Cumulative Update 23alle Versionencert_bundDEcpe:/a:microsoft:exchange:server_2016_cumulative_update_23
Microsoft Exchange Server 2019 Cumulative Update 14alle Versionencert_bundDEcpe:/a:microsoft:exchange:server_2019_cumulative_update_14
Microsoft Exchange Server 2019 Cumulative Update 15alle Versionencert_bundDEcpe:/a:microsoft:exchange:server_2019_cumulative_update_15
Microsoft Windows 10 Version 1607alle Versionencert_bundDEcpe:/o:microsoft:windows_10:version_1607
Microsoft Windows 10 Version 1809alle Versionencert_bundDEcpe:/o:microsoft:windows_10:version_1809
Microsoft Windows 10 Version 21H2alle Versionencert_bundDEcpe:/o:microsoft:windows_10:version_21h2
Microsoft Windows 10 Version 22H2alle Versionencert_bundDEcpe:/o:microsoft:windows_10:version_22h2
Microsoft Windows 11 Version 23H2alle Versionencert_bundDEcpe:/o:microsoft:windows_11:version_23h2
Microsoft Windows 11 Version 24H2alle Versionencert_bundDEcpe:/o:microsoft:windows_11:version_24h2
Microsoft Windows 11 Version 25H2alle Versionencert_bundDEcpe:/o:microsoft:windows_11:version_25h2
Microsoft Windows 11 Version 26H1alle Versionencert_bundDEcpe:/o:microsoft:windows_11:version_26h1
Microsoft Windows 11 version 26H1alle Versionencert_bundDE
Microsoft Windows App for Macalle Versionencert_bundDEcpe:/o:microsoft:windows:app_for_mac
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 2022 23H2 Editionalle Versionencert_bundDEcpe:/o:microsoft:windows_server_2022:23h2_edition

20 von 193 angezeigt

Advisories (4)

Hersteller- und Ökosystem-Meldungen dazu.

NCSC-2026-0053Kwetsbaarheden verholpen in Microsoft WindowsNL2026-02-10csaf · ncsc_nlNL
Microsoft heeft kwetsbaarheden verholpen in Windows.
WID-SEC-W-2026-0369Microsoft Windows: Mehrere SchwachstellenDeutsch2026-02-10csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in Microsoft Windows-Produkten ausnutzen, um Administratorrechte zu erlangen, beliebigen Code auszuführen, Sicherheitsmaßnahmen zu umgehen, Spoofing-Angriffe zu starten, Daten zu manipulieren, vertrauliche Informationen offenzulegen und einen Denial-of-Service-Zustand zu verursachen.
msrc_CVE-2026-21508Windows Storage Elevation of Privilege Vulnerability2026-02-10csaf · msrc_csafUS
To determine the support lifecycle for your software, see the Microsoft Support Lifecycle: https://support.microsoft.com/lifecycle
JVNDB-2026-009406JVN iPedia advisory JVNDB-2026-0094062026-03-31vendor · jvndbJP

auch bekannt als (4)

Weitere Namen und Kennungen dieser Entität.

quellen

Welche Quellen diesen Datensatz belegen und wann.

cnnvd enisa_euvd fstec_bdu cert_bund ncsc_nl msrc_csaf jvndb NVD CVE.org MITRE

veröffentlicht 2026-02-10geändert 2026-07-06

Referenzen (3)

Externe Belege — Patches, Meldungen, Analysen.

scry

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

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