CVE-2025-49672
Published: 08 July 2025
Summary
CVE-2025-49672 is a high-severity Heap-based Buffer Overflow (CWE-122) vulnerability in Microsoft Windows Server 2008. Its CVSS base score is 8.8 (High).
Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked in the top 29.3% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
The strongest mitigations our analysis identified are NIST 800-53 SI-10 (Information Input Validation) and SI-16 (Memory Protection).
Threat & Defense at a Glance
Threat & Defense Details
Mitigating Controls (NIST 800-53 r5)AI
Requires identification, reporting, and correction of flaws like the heap-based buffer overflow in RRAS through timely patching.
Implements memory protection methods to prevent unauthorized code execution resulting from heap buffer overflows in RRAS.
Mandates validation of network inputs to RRAS to block malformed data causing the heap-based buffer overflow.
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
Heap buffer overflow in public-facing RRAS service directly enables remote unauthenticated arbitrary code execution (T1190/T1210).
NVD Description
Heap-based buffer overflow in Windows Routing and Remote Access Service (RRAS) allows an unauthorized attacker to execute code over a network.
Deeper analysisAI
CVE-2025-49672 is a heap-based buffer overflow vulnerability, classified under CWE-122, affecting the Windows Routing and Remote Access Service (RRAS). Published on 2025-07-08, it carries a CVSS v3.1 base score of 8.8 (AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H), indicating high severity due to its potential for significant impact.
An unauthorized attacker can exploit this vulnerability over a network with low attack complexity and no required privileges, though user interaction is necessary. Successful exploitation allows the attacker to execute arbitrary code, potentially compromising confidentiality, integrity, and availability with high impact.
The Microsoft Security Response Center advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-49672 provides guidance on updates and mitigations for this vulnerability.
Details
- CWE(s)