CVE-2025-26666
Published: 08 April 2025
Summary
CVE-2025-26666 is a high-severity Heap-based Buffer Overflow (CWE-122) vulnerability in Microsoft Windows 10 1809. Its CVSS base score is 7.8 (High).
Operationally, ranked in the top 29.2% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
Deeper analysis
CVE-2025-26666 is a heap-based buffer overflow vulnerability, identified as CWE-122, that affects Windows Media. The flaw received a CVSS v3.1 score of 7.8 and was published on 2025-04-08, enabling an attacker to execute arbitrary code on an affected system.
An authorized local attacker can exploit the issue with low attack complexity and no user interaction required. Successful exploitation grants the ability to compromise confidentiality, integrity, and availability on the target Windows host.
The Microsoft Security Response Center advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-26666 supplies official details and remediation guidance. The associated EPSS score remains low, with a current value of 0.0063 and a peak of 0.0107.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2025-10225
Vulnerability details
Heap-based buffer overflow in Windows Media allows an authorized attacker to execute code locally.
- 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.