CVE-2025-21244: CWE-190: Integer Overflow or Wraparound in Microsoft Windows 10 Version 1507
Windows Telephony Service Remote Code Execution Vulnerability
AI Analysis
Technical Summary
CVE-2025-21244 is an integer overflow or wraparound vulnerability (CWE-190) in the Windows Telephony Service on Windows 10 Version 1507 (build 10.0.10240.0). The vulnerability allows remote attackers to execute arbitrary code remotely, potentially leading to full system compromise. The CVSS v3.1 base score is 8.8, indicating high severity with network attack vector, low attack complexity, no privileges required, and user interaction required. Microsoft has released an official fix to address this issue.
Potential Impact
Successful exploitation of this vulnerability could result in remote code execution with high impact on confidentiality, integrity, and availability of the affected system. This could allow an attacker to run arbitrary code in the context of the Windows Telephony Service, potentially leading to system takeover.
Mitigation Recommendations
An official fix is available from Microsoft. Users and administrators should apply the security update provided in the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-21244 to remediate this vulnerability.
CVE-2025-21244: CWE-190: Integer Overflow or Wraparound in Microsoft Windows 10 Version 1507
Description
Windows Telephony Service Remote Code Execution Vulnerability
CVSS v3.1
Score 8.8high
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2025-21244 is an integer overflow or wraparound vulnerability (CWE-190) in the Windows Telephony Service on Windows 10 Version 1507 (build 10.0.10240.0). The vulnerability allows remote attackers to execute arbitrary code remotely, potentially leading to full system compromise. The CVSS v3.1 base score is 8.8, indicating high severity with network attack vector, low attack complexity, no privileges required, and user interaction required. Microsoft has released an official fix to address this issue.
Potential Impact
Successful exploitation of this vulnerability could result in remote code execution with high impact on confidentiality, integrity, and availability of the affected system. This could allow an attacker to run arbitrary code in the context of the Windows Telephony Service, potentially leading to system takeover.
Mitigation Recommendations
An official fix is available from Microsoft. Users and administrators should apply the security update provided in the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-21244 to remediate this vulnerability.
Technical Details
- Data Version
- 5.1
- Assigner Short Name
- microsoft
- Date Reserved
- 2024-12-10T23:54:12.925Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-21244","vendor":"Microsoft"}]
Threat ID: 68c0bd4e9ed239a66badeac7
Added to database: 09/09/2025, 23:50:38 UTC
Last enriched: 06/10/2026, 09:45:44 UTC
Last updated: 09/10/2026, 19:36:49 UTC
Views: 93
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