Summary
Impact: Remote Code Execution. Microsoft rating: Important. Not known to be exploited — Exploitation Unlikely. Customer action: Required.
Details
According to the CVSS metric, the attack vector is network (AV:N), user interaction is required (UI:R), and privileges required are none (PR:N). What does that mean for this vulnerability?
Exploitation of this vulnerability requires an unauthorized attacker to wait for a user to initiate a connection to a malicious server that the attacker has set up prior to the user connecting.
How could an attacker exploit this vulnerability?
An attacker could exploit this vulnerability by tricking a user into sending a request to a malicious server via the Routing and Remote Access Service (RRAS) Snap-in. This could result in the server returning malicious data that might cause arbitrary code execution on the user's system.
Security updates
10.0.17763.7558 — https://support.microsoft.com/help/5062557
10.0.20348.3932 — https://support.microsoft.com/help/5062572
10.0.26100.4652 — https://support.microsoft.com/help/5062553
10.0.25398.1732 — https://support.microsoft.com/help/5062570
10.0.14393.8246 — https://support.microsoft.com/help/5062560
6.3.9600.22676 — https://support.microsoft.com/help/5062597
Vulnerabilities 1
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High 8.8
Windows Routing and Remote Access Service (RRAS) Remote Code Execution Vulnerability
Double free in Windows Routing and Remote Access Service (RRAS) allows an unauthorized attacker to execute code over a network.
Revision history
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#1
Information published.
References
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CVE-2025-49688 Windows Routing and Remote Access Service (RRAS) Remote Code Execution Vulnerability - HTML
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-49688
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Microsoft Exploitability Index
https://www.microsoft.com/en-us/msrc/exploitability-index?rtc=1
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Microsoft Support Lifecycle
https://support.microsoft.com/lifecycle
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Common Vulnerability Scoring System
https://www.first.org/cvss