CVE-2025-21282
Published: 14 January 2025
Summary
CVE-2025-21282 is a high-severity Heap-based Buffer Overflow (CWE-122) vulnerability in Microsoft Windows 10 1507. Its CVSS base score is 8.8 (High).
Operationally, exploitation aligns with the MITRE ATT&CK technique Exploitation of Remote Services (T1210); ranked in the top 17.8% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
The strongest mitigations our analysis identified are NIST 800-53 SI-16 (Memory Protection) and SI-2 (Flaw Remediation).
Threat & Defense at a Glance
Threat & Defense Details
Mitigating Controls (NIST 800-53 r5)AI
Directly remediates the RCE vulnerability in Windows Telephony Service by requiring timely application of Microsoft patches.
Protects against heap-based buffer overflow (CWE-122) exploitation leading to RCE via memory safeguards like DEP and ASLR.
Reduces attack surface by restricting or disabling the unnecessary Windows Telephony Service functionality.
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
RCE in Windows Telephony Service enables exploitation of remote services for code execution.
NVD Description
Windows Telephony Service Remote Code Execution Vulnerability
Deeper analysisAI
CVE-2025-21282 is a Remote Code Execution vulnerability in the Windows Telephony Service. Published on 2025-01-14, it carries a CVSS v3.1 base score of 8.8 (AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H) and is associated with CWE-122.
The vulnerability can be exploited by a remote unauthenticated attacker over the network with low attack complexity, though it requires user interaction. Successful exploitation enables the attacker to achieve high impacts on confidentiality, integrity, and availability, allowing remote code execution on affected systems.
Microsoft has published an update guide with details on mitigation and patches at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-21282.
Details
- CWE(s)