CVE-2025-49753 Windows Routing and Remote Access Service (RRAS) Remote Code Execution Vulnerability

What is CVE-2025-49753?

CVE-2025-49753 is a high-severity memory corruption vulnerability in Microsoft Windows Server 2008, published on 8 Jul 2025. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

Heap-based buffer overflow in Windows Routing and Remote Access Service (RRAS) allows an unauthorized attacker to execute code over a network.

Weakness: CWE-122

Which versions are affected by CVE-2025-49753?

It affects 7 products.

Products include Microsoft Windows Server 2008, Microsoft Windows Server 2012, Microsoft Windows Server 2016, Microsoft Windows Server 2019, Microsoft Windows Server 2022, Microsoft Windows Server 2022 23h2 and 1 more.

How do I fix CVE-2025-49753?

No fix has been published for CVE-2025-49753 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2025-49753 being exploited?

There is no known exploitation of CVE-2025-49753 in the wild and no public exploit code.

Other vulnerabilities in Microsoft Windows Server 2008

• CVE-2020-1350 Microsoft Windows DNS Server Remote Code Execution Exploited Critical 10.0
• CVE-2020-1040 Microsoft Hyper-V RemoteFX vGPU Remote Code Execution Exploited Critical 9.0
• CVE-2011-1966 Memory corruption in n/a Critical 10.0
• CVE-2010-0239 Memory corruption in n/a Critical 10.0
• CVE-2010-0240 Code injection in n/a Critical 10.0

All Microsoft Windows Server 2008 vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-7xrw-638h-55gm.