6.2

CVE-2026-21525

Warnung
Medienbericht

Windows Remote Access Connection Manager Denial of Service Vulnerability

Null pointer dereference in Windows Remote Access Connection Manager allows an unauthorized attacker to deny service locally.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Microsoft ≫ Windows 10 1607 HwPlatform x64 Version < 10.0.14393.8868
Microsoft ≫ Windows 10 1607 HwPlatform x86 Version < 10.0.14393.8868
Microsoft ≫ Windows 10 1809 HwPlatform x64 Version < 10.0.17763.8389
Microsoft ≫ Windows 10 1809 HwPlatform x86 Version < 10.0.17763.8389
Microsoft ≫ Windows 10 21h2 HwPlatform arm64 Version < 10.0.19044.6937
Microsoft ≫ Windows 10 21h2 HwPlatform x64 Version < 10.0.19044.6937
Microsoft ≫ Windows 10 21h2 HwPlatform x86 Version < 10.0.19044.6937
Microsoft ≫ Windows 10 22h2 HwPlatform arm64 Version < 10.0.19045.6937
Microsoft ≫ Windows 10 22h2 HwPlatform x64 Version < 10.0.19045.6937
Microsoft ≫ Windows 10 22h2 HwPlatform x86 Version < 10.0.19045.6937
Microsoft ≫ Windows 11 23h2 HwPlatform arm64 Version < 10.0.22631.6649
Microsoft ≫ Windows 11 23h2 HwPlatform x64 Version < 10.0.22631.6649
Microsoft ≫ Windows 11 24h2 HwPlatform arm64 Version < 10.0.26100.7781
Microsoft ≫ Windows 11 24h2 HwPlatform x64 Version < 10.0.26100.7781
Microsoft ≫ Windows 11 25h2 HwPlatform arm64 Version < 10.0.26200.7781
Microsoft ≫ Windows 11 25h2 HwPlatform x64 Version < 10.0.26200.7781
Microsoft ≫ Windows Server 2016 Version < 10.0.14393.8868
Microsoft ≫ Windows Server 2019 Version < 10.0.17763.8389
Microsoft ≫ Windows Server 2022 Version < 10.0.20348.4711
Microsoft ≫ Windows Server 2022 23h2 Version < 10.0.25398.2149
Microsoft ≫ Windows Server 2025 Version < 10.0.26100.32313
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10.02.2026: CISA Known Exploited Vulnerabilities (KEV) Catalog

Microsoft Windows NULL Pointer Dereference Vulnerability

Schwachstelle

Microsoft Windows Remote Access Connection Manager contains a NULL pointer dereference that could allow an unauthorized attacker to deny service locally.

Beschreibung

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

Erforderliche Maßnahmen
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 4.96% 0.911
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
Microsoft 6.2 2.5 3.6
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE-476 NULL Pointer Dereference

The product dereferences a pointer that it expects to be valid but is NULL.

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Media Report
11.02.2026 09:31
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Media Report
10.02.2026 23:16
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-21525
Vendor Advisory
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-21525
US Government Resource
https://www.vicarius.io/vsociety/posts/cve-2026-21525-detection-script-dos-vulnerability-in-windows-remote-access-connection-manager
Third Party Advisory
https://www.vicarius.io/vsociety/posts/cve-2026-21525-mitigation-script-dos-vulnerability-in-windows-remote-access-connection-manager
Third Party Advisory
Mitigation