CVE-2025-21411: CWE-122: Heap-based Buffer Overflow in Microsoft Windows 10 Version 1507
Windows Telephony Service Remote Code Execution Vulnerability
AI Analysis
Technical Summary
This vulnerability (CWE-122) in Microsoft Windows 10 Version 1507's Telephony Service allows remote attackers to execute arbitrary code by exploiting a heap-based buffer overflow. The CVSS 3.1 score is 8.8, indicating high impact with network attack vector, low attack complexity, no privileges required, but user interaction needed. Microsoft has published an official fix addressing this issue.
Potential Impact
Successful exploitation could allow remote code execution with full confidentiality, integrity, and availability impact on the affected system. This could lead to complete system compromise if exploited.
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-2025-21411 to remediate this vulnerability.
CVE-2025-21411: CWE-122: Heap-based Buffer Overflow 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
This vulnerability (CWE-122) in Microsoft Windows 10 Version 1507's Telephony Service allows remote attackers to execute arbitrary code by exploiting a heap-based buffer overflow. The CVSS 3.1 score is 8.8, indicating high impact with network attack vector, low attack complexity, no privileges required, but user interaction needed. Microsoft has published an official fix addressing this issue.
Potential Impact
Successful exploitation could allow remote code execution with full confidentiality, integrity, and availability impact on the affected system. This could lead to complete system compromise if exploited.
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-2025-21411 to remediate this vulnerability.
Technical Details
- Data Version
- 5.1
- Assigner Short Name
- microsoft
- Date Reserved
- 2024-12-11T00:29:48.376Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-21411","vendor":"Microsoft"}]
Threat ID: 68c0bd549ed239a66badec72
Added to database: 09/09/2025, 23:50:44 UTC
Last enriched: 06/10/2026, 10:01:48 UTC
Last updated: 07/08/2026, 10:28:16 UTC
Views: 286
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
External Links
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.