CVE-2025-29964
Published: 13 May 2025
Summary
CVE-2025-29964 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 15.9% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
Deeper analysis
CVE-2025-29964 is a heap-based buffer overflow vulnerability, tracked under CWE-122 and CWE-787, that affects Windows Media. It carries a CVSS 3.1 base score of 8.8 reflecting network attack vector, low attack complexity, no required privileges, and required user interaction, with high impact to confidentiality, integrity, and availability.
An unauthenticated remote attacker can exploit the flaw over a network to execute arbitrary code on a target system. The attack requires the victim to interact with malicious content, after which the attacker gains full control equivalent to the privileges of the affected process.
The official Microsoft Security Response Center advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-29964 supplies patch information and mitigation guidance for affected Windows Media components. The associated EPSS score remains flat at 0.02 with no material increase since disclosure.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2025-14472
Vulnerability details
Heap-based buffer overflow in Windows Media 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.