CVE-2025-29966
Published: 13 May 2025
Summary
CVE-2025-29966 is a high-severity Heap-based Buffer Overflow (CWE-122) vulnerability in Microsoft Windows 10 21H2. Its CVSS base score is 8.8 (High).
Operationally, ranked in the top 12.3% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
Deeper analysis
CVE-2025-29966 is a heap-based buffer overflow vulnerability, tracked under CWEs 122 and 787, that affects the Windows Remote Desktop component. It carries a CVSS 3.1 score of 8.8 with a network attack vector, low attack complexity, no required privileges, and required user interaction, resulting in high impact to confidentiality, integrity, and availability.
An unauthorized attacker can exploit the flaw over a network to achieve remote code execution. The Microsoft Security Response Center advisory at the provided reference URL addresses the issue.
The associated EPSS score remains flat at a peak and current value of 0.0339 with no material increase after disclosure.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2025-14471
Vulnerability details
Heap-based buffer overflow in Windows Remote Desktop 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
Likely Mitigating Controls AI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
Out-of-bounds writes that corrupt control flow or inject shellcode are rendered non-executable by the same memory protections.