Buffer overflow in Microsoft Windows_10_1507
CVE-2025-21409
Windows Telephony Service Remote Code Execution Vulnerability
Vulnerability class: Buffer Overflow
EPSS: 0.011 (60.6th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
Affected products
- Microsoft Windows_10_1507
- Microsoft Windows_10_1607
- Microsoft Windows_10_1809
- Microsoft Windows_10_21h2
- Microsoft Windows_10_22h2
- Microsoft Windows 10 Version 1507 — versions 10.0.10240.0
- Microsoft Windows 10 Version 1607 — versions 10.0.14393.0
- Microsoft Windows 10 Version 1809 — versions 10.0.17763.0
- Microsoft Windows 10 Version 21h2 — versions 10.0.19044.0
- Microsoft Windows 10 Version 22h2 — versions 10.0.19045.0
Weakness classification (CWE)
References
- secure@microsoft.com (vendor-advisory, Patch, patch, Vendor Advisory)
Frequently asked questions
- What is CVE-2025-21409?
- CVE-2025-21409 is a high-severity vulnerability in Microsoft Windows_10_1507, classified under Heap-based Buffer Overflow. CVSS score: 8.8/10. Published 2025-01-14.
- How severe is CVE-2025-21409?
- High severity. CVSS v3 base score is 8.8 out of 10.