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CVE-2025-62549: Windows RRAS Remote Code Execution Through Network Access

CVE-2025-62549 · published 11 months ago

Summary

An attacker can remotely run malicious code on a Windows server that uses the Routing and Remote Access Service. This can happen if the server is not properly configured or if an attacker can connect to it. To protect your server, ensure it's properly configured and patched with the latest updates.

What to do

Update microsoft windows_10_1607 to version 10.0.14393.8688 or later.
Update microsoft windows_10_1809 to version 10.0.17763.8146 or later.
Update microsoft windows_10_21h2 to version 10.0.19044.6691 or later.
Update microsoft windows_10_22h2 to version 10.0.19045.6691 or later.
Update microsoft windows_11_23h2 to version 10.0.22631.6345 or later.
Update microsoft windows_11_24h2 to version 10.0.26100.7392 or later.
Update microsoft windows_11_25h2 to version 10.0.26200.7392 or later.
Update microsoft windows_server_2016 to version 10.0.14393.8688 or later.
Update microsoft windows_server_2019 to version 10.0.17763.8146 or later.
Update microsoft windows_server_2022 to version 10.0.20348.4467 or later.
Update microsoft windows_server_2022_23h2 to version 10.0.25398.2025 or later.
Update microsoft windows_server_2025 to version 10.0.26100.7392 or later.

Affected software

Vendor	Product	Affected versions
microsoft	windows_server_2008	r2 `cpe:2.3:o:microsoft:windows_server_2008:-:sp2:::::x64:*`
microsoft	windows_10_1607	< 10.0.14393.8688 `cpe:2.3:o:microsoft:windows_10_1607:::::::x64:*`
microsoft	windows_10_1809	< 10.0.17763.8146 `cpe:2.3:o:microsoft:windows_10_1809:::::::x64:*`
microsoft	windows_10_21h2	< 10.0.19044.6691 `cpe:2.3:o:microsoft:windows_10_21h2::::::::`
microsoft	windows_10_22h2	< 10.0.19045.6691 `cpe:2.3:o:microsoft:windows_10_22h2::::::::`
microsoft	windows_11_23h2	< 10.0.22631.6345 `cpe:2.3:o:microsoft:windows_11_23h2::::::::`
microsoft	windows_11_24h2	< 10.0.26100.7392 `cpe:2.3:o:microsoft:windows_11_24h2::::::::`
microsoft	windows_11_25h2	< 10.0.26200.7392 `cpe:2.3:o:microsoft:windows_11_25h2::::::::`
microsoft	windows_server_2012	r2 `cpe:2.3:o:microsoft:windows_server_2012:-:::::::*`
microsoft	windows_server_2016	< 10.0.14393.8688 `cpe:2.3:o:microsoft:windows_server_2016::::::::`
microsoft	windows_server_2019	< 10.0.17763.8146 `cpe:2.3:o:microsoft:windows_server_2019::::::::`
microsoft	windows_server_2022	< 10.0.20348.4467 `cpe:2.3:o:microsoft:windows_server_2022::::::::`
microsoft	windows_server_2022_23h2	< 10.0.25398.2025 `cpe:2.3:o:microsoft:windows_server_2022_23h2::::::::`
microsoft	windows_server_2025	< 10.0.26100.7392 `cpe:2.3:o:microsoft:windows_server_2025::::::::`

Original advisory text

Untrusted pointer dereference in Windows Routing and Remote Access Service (RRAS) allows an unauthorized attacker to execute code over a network.

References

Fix within

Internet-facing 14 days

Internal At next upgrade

Not known to be exploited
Needs hands-on effort to exploit
Gives an attacker full control

Severity

8.8 High

Exploitation

1% chance of attack within 30 days

Type

CWE-822Untrusted Pointer Dereference

Timeline

Published9 Dec 2025

Updated4 Nov 2026

First seen7 Mar 2026

Sources

CVE-2025-62549 · NVD

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