CVE-2026-20931: CWE-73: External Control of File Name or Path in Microsoft Windows 10 Version 1607
External control of file name or path in Windows Telephony Service allows an authorized attacker to elevate privileges over an adjacent network.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-20931) in Windows 10 Version 1607's Telephony Service allows an authorized attacker with access to an adjacent network to manipulate file names or paths externally. This flaw can be exploited to elevate privileges on the affected system. The CVSS 3.1 vector indicates low attack complexity, no user interaction required, and high impact on confidentiality, integrity, and availability. The vulnerability is classified under CWE-73 (External Control of File Name or Path). Microsoft has released a patch to address this issue.
Potential Impact
Successful exploitation of this vulnerability could allow an attacker with some level of authorization on an adjacent network to elevate their privileges on the affected Windows 10 system. This could lead to full compromise of the system's confidentiality, integrity, and availability.
Mitigation Recommendations
A patch is available for this vulnerability. It is recommended to apply the official Microsoft update for Windows 10 Version 1607 to remediate this issue. No additional mitigation steps are specified.
CVE-2026-20931: CWE-73: External Control of File Name or Path in Microsoft Windows 10 Version 1607
Description
External control of file name or path in Windows Telephony Service allows an authorized attacker to elevate privileges over an adjacent network.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-20931) in Windows 10 Version 1607's Telephony Service allows an authorized attacker with access to an adjacent network to manipulate file names or paths externally. This flaw can be exploited to elevate privileges on the affected system. The CVSS 3.1 vector indicates low attack complexity, no user interaction required, and high impact on confidentiality, integrity, and availability. The vulnerability is classified under CWE-73 (External Control of File Name or Path). Microsoft has released a patch to address this issue.
Potential Impact
Successful exploitation of this vulnerability could allow an attacker with some level of authorization on an adjacent network to elevate their privileges on the affected Windows 10 system. This could lead to full compromise of the system's confidentiality, integrity, and availability.
Mitigation Recommendations
A patch is available for this vulnerability. It is recommended to apply the official Microsoft update for Windows 10 Version 1607 to remediate this issue. No additional mitigation steps are specified.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2025-12-04T20:04:16.336Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 69668ae3a60475309f9ae1db
Added to database: 1/13/2026, 6:11:47 PM
Last enriched: 4/3/2026, 12:50:05 PM
Last updated: 5/10/2026, 9:25:34 AM
Views: 419
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