CVE-2025-33066
Published: 10 June 2025
Summary
CVE-2025-33066 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, ranked in the top 15.9% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
Deeper analysis
CVE-2025-33066 is a heap-based buffer overflow vulnerability, tracked under CWE-122, that affects the Windows Routing and Remote Access Service (RRAS). The flaw carries a CVSS 3.1 score of 8.8 and was published on 10 June 2025.
An unauthorized attacker can exploit the issue over a network with low attack complexity and no required privileges, though user interaction is needed. Successful exploitation grants the ability to execute arbitrary code, resulting in high impact to confidentiality, integrity, and availability.
The official Microsoft Security Response Center advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-33066 supplies remediation guidance. The associated EPSS score has remained flat at 0.02 with no material increase since disclosure.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2025-17776
Vulnerability details
Heap-based buffer overflow in Windows Routing and Remote Access Service (RRAS) allows an unauthorized attacker to execute code over a network.
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
Mitigating Controls
No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.