CVE-2025-21307: Windows Reliable Multicast Transport Driver (RMCAST) Remote Code Execution Vulnerability
First published: Tue Jan 14 2025(Updated: )
Windows Reliable Multicast Transport Driver (RMCAST) Remote Code Execution Vulnerability
Credit: secure@microsoft.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Microsoft Windows 10 | =1607 | |
| Microsoft Windows Server 2008 R2 | ||
| Microsoft Windows 10 | ||
| Microsoft Windows Server 2012 R2 | ||
| Microsoft Windows Server 2008 R2 | ||
| Microsoft Windows Server 2012 R2 | ||
| Microsoft Windows Server 2025 | ||
| Microsoft Windows 10 | ||
| Microsoft Windows 10 | =1607 | |
| Microsoft Windows 10 | =1809 | |
| Microsoft Windows 10 | =22H2 | |
| Microsoft Windows 10 | =22H2 | |
| Microsoft Windows Server 2025 | ||
| Microsoft Windows 10 | =22H2 | |
| Microsoft Windows 10 | =1809 | |
| Microsoft Windows 10 | =21H2 | |
| Microsoft Windows 10 | =21H2 | |
| Microsoft Windows 10 | =21H2 | |
| Microsoft Windows Server 2022 23H2 | ||
| Microsoft Windows Server | ||
| Microsoft Windows Server | ||
| Microsoft Windows Server | ||
| Microsoft Windows Server | ||
| Microsoft Windows Server | ||
| Microsoft Windows Server | ||
| Microsoft Windows Server 2016 | ||
| Microsoft Windows Server 2016 | ||
| Microsoft Windows Server 2019 | ||
| Microsoft Windows Server 2019 | ||
| Windows 11 | =23H2 | |
| Windows 11 | =22H2 | |
| Windows 11 | =22H2 | |
| Windows 11 | =24H2 | |
| Windows 11 | =24H2 | |
| Windows 11 | =23H2 | |
| Microsoft Windows Server 2022 | ||
| Microsoft Windows Server 2022 | ||
| Microsoft Windows 10 | <10.0.10240.20890 | |
| Microsoft Windows 10 | <10.0.10240.20890 | |
| Microsoft Windows 10 | <10.0.14393.7699 | |
| Microsoft Windows 10 | <10.0.14393.7699 | |
| Microsoft Windows 10 | <10.0.17763.6775 | |
| Microsoft Windows 10 | <10.0.17763.6775 | |
| Microsoft Windows 10 | <10.0.19044.5371 | |
| Microsoft Windows 10 | <10.0.19045.5371 | |
| Windows 11 | <10.0.22621.4751 | |
| Windows 11 | <10.0.22631.4751 | |
| Windows 11 | <10.0.26100.2894 | |
| Microsoft Windows Server | =sp2 | |
| Microsoft Windows Server | =r2-sp1 | |
| Microsoft Windows Server | ||
| Microsoft Windows Server | =r2 | |
| Microsoft Windows Server 2016 | <10.0.14393.7699 | |
| Microsoft Windows Server 2019 | <10.0.17763.6775 | |
| Microsoft Windows Server 2022 | <10.0.20348.3091 | |
| Microsoft Windows Server 2022 | <10.0.25398.1369 | |
| Microsoft Windows Server 2025 | <10.0.26100.2894 |
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Reference Links
Peer vulnerabilities
(Found alongside the following vulnerabilities)
Frequently Asked Questions
What is the severity of CVE-2025-21307?
CVE-2025-21307 is classified as a remote code execution vulnerability, which is considered high severity due to its potential to allow attackers to execute commands remotely.
How do I fix CVE-2025-21307?
To fix CVE-2025-21307, you should apply the latest security patches provided by Microsoft for the affected Windows versions.
Which Windows versions are affected by CVE-2025-21307?
CVE-2025-21307 affects multiple versions of Windows, including Windows 10 and Windows 11, as well as Windows Server editions.
Can CVE-2025-21307 be exploited remotely?
Yes, CVE-2025-21307 can be exploited remotely, allowing an attacker to run arbitrary code on the affected systems.
Are there any workarounds for CVE-2025-21307?
Currently, it is recommended to apply the security updates as the most effective method to mitigate the risks associated with CVE-2025-21307.
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- source/Microsoft
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- alias/CVE-2025-21335
- alias/CVE-2025-21333
- alias/CVE-2025-21334
- alias/CVE-2025-21186
- alias/CVE-2025-21366
- alias/CVE-2025-21395
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- alias/CVE-2025-21308
- alias/CVE-2025-21311
- alias/CVE-2025-21307
- alias/CVE-2025-21298
- collector/the-register
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- alias/CVE-2025-21362
- alias/CVE-2025-21354
- alias/CVE-2025-21309
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- version/microsoft windows 10/21h2
- canonical/microsoft windows server 2022 23h2
- canonical/microsoft windows server
- canonical/microsoft windows server 2016
- canonical/microsoft windows server 2019
- canonical/windows 11
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- version/windows 11/24h2
- canonical/microsoft windows server 2022
- version/microsoft windows server/sp2
- version/microsoft windows server/r2-sp1
- version/microsoft windows server/r2