Mar 2026: Windows Routing and Remote Access Service (RRAS) Remote Code Execution Vulnerability
CVE-2026-25173 Published on March 10, 2026
Windows Routing and Remote Access Service (RRAS) Remote Code Execution Vulnerability
Integer overflow or wraparound in Windows Routing and Remote Access Service (RRAS) allows an authorized attacker to execute code over a network.
Weakness Types
Integer Overflow or Wraparound
The software performs a calculation that can produce an integer overflow or wraparound, when the logic assumes that the resulting value will always be larger than the original value. This can introduce other weaknesses when the calculation is used for resource management or execution control. An integer overflow or wraparound occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may wrap to become a very small or negative number. While this may be intended behavior in circumstances that rely on wrapping, it can have security consequences if the wrap is unexpected. This is especially the case if the integer overflow can be triggered using user-supplied inputs. This becomes security-critical when the result is used to control looping, make a security decision, or determine the offset or size in behaviors such as memory allocation, copying, concatenation, etc.
Heap-based Buffer Overflow
A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc().
Products Associated with CVE-2026-25173
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Affected Versions
Microsoft Windows 10 Version 1607:- Version 10.0.14393.0 and below 10.0.14393.8957 is affected.
- Version 10.0.17763.0 and below 10.0.17763.8511 is affected.
- Version 10.0.19044.0 and below 10.0.19044.7058 is affected.
- Version 10.0.19045.0 and below 10.0.19045.7058 is affected.
- Version 10.0.22631.0 and below 10.0.22631.6783 is affected.
- Version 10.0.22631.0 and below 10.0.22631.6783 is affected.
- Version 10.0.26100.0 and below 10.0.26100.8037 is affected.
- Version 10.0.26200.0 and below 10.0.26200.8037 is affected.
- Version 10.0.28000.0 and below 10.0.28000.1719 is affected.
- Version 10.0.28000.0 and below 10.0.28000.1719 is affected.
- Version 6.2.9200.0 and below 6.2.9200.25973 is affected.
- Version 6.2.9200.0 and below 6.2.9200.25973 is affected.
- Version 6.3.9600.0 and below 6.3.9600.23074 is affected.
- Version 6.3.9600.0 and below 6.3.9600.23074 is affected.
- Version 10.0.14393.0 and below 10.0.14393.8957 is affected.
- Version 10.0.14393.0 and below 10.0.14393.8957 is affected.
- Version 10.0.17763.0 and below 10.0.17763.8511 is affected.
- Version 10.0.17763.0 and below 10.0.17763.8511 is affected.
- Version 10.0.20348.0 and below 10.0.20348.4893 is affected.
- Version 10.0.25398.0 and below 10.0.25398.2207 is affected.
- Version 10.0.26100.0 and below 10.0.26100.32522 is affected.
- Version 10.0.26100.0 and below 10.0.26100.32522 is affected.