8.1

CVE-2026-78449

Medienbericht

Windows Reliable Multicast Transport Driver (RMCAST) Remote Code Execution Vulnerability

Use after free in Reliable Multicast Transport Driver (RMCAST) allows an unauthorized attacker to execute code over a network.
Daten sind bereitgestellt durch das CVE Programm von einer CVE Numbering Authority (CNA) (Unstrukturiert).
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Produkt Windows 10 Version 1607
Version 10.0.14393.0
Version < 10.0.14393.9512
Status affected
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Produkt Windows 10 Version 1809
Version 10.0.17763.0
Version < 10.0.17763.9245
Status affected
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Produkt Windows 10 Version 21H2
Version 10.0.19044.0
Version < 10.0.19044.7725
Status affected
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Produkt Windows 10 Version 22H2
Version 10.0.19045.0
Version < 10.0.19045.7725
Status affected
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Produkt Windows 11 version 23H2
Version 10.0.22631.0
Version < 10.0.22631.7582
Status affected
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Produkt Windows 11 Version 23H2
Version 10.0.22631.0
Version < 10.0.22631.7582
Status affected
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Produkt Windows 11 Version 24H2
Version 10.0.26100.0
Version < 10.0.26100.9445
Status affected
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Produkt Windows 11 Version 25H2
Version 10.0.26200.0
Version < 10.0.26200.9445
Status affected
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Produkt Windows 11 version 26H1
Version 10.0.28000.0
Version < 10.0.28000.2954
Status affected
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Produkt Windows Server 2012
Version 6.2.9200.0
Version < 6.2.9200.26349
Status affected
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Produkt Windows Server 2012 (Server Core installation)
Version 6.2.9200.0
Version < 6.2.9200.26349
Status affected
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Produkt Windows Server 2012 R2
Version 6.3.9600.0
Version < 6.3.9600.23397
Status affected
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Produkt Windows Server 2012 R2 (Server Core installation)
Version 6.3.9600.0
Version < 6.3.9600.23397
Status affected
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Produkt Windows Server 2016
Version 10.0.14393.0
Version < 10.0.14393.9512
Status affected
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Produkt Windows Server 2016 (Server Core installation)
Version 10.0.14393.0
Version < 10.0.14393.9512
Status affected
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Produkt Windows Server 2019
Version 10.0.17763.0
Version < 10.0.17763.9245
Status affected
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Produkt Windows Server 2019 (Server Core installation)
Version 10.0.17763.0
Version < 10.0.17763.9245
Status affected
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Produkt Windows Server 2022
Version 10.0.20348.0
Version < 10.0.20348.5622
Status affected
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Produkt Windows Server 2025
Version 10.0.26100.0
Version < 10.0.26100.33438
Status affected
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Produkt Windows Server 2025 (Server Core installation)
Version 10.0.26100.0
Version < 10.0.26100.33438
Status affected
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.52% 0.424
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
Microsoft 8.1 2.2 5.9
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE-416 Use After Free

The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

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VulnDex Intel
Media Report
08.09.2026 20:38
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-78449