CVE-2025-21257: CWE-125: Out-of-bounds Read in Microsoft Windows 10 Version 1607
Windows WLAN AutoConfig Service Information Disclosure Vulnerability
AI Analysis
Technical Summary
This vulnerability (CVE-2025-21257) involves an out-of-bounds read (CWE-125) in the Windows WLAN AutoConfig Service on Windows 10 Version 1607 (build 10.0.14393.0). The flaw allows an attacker with local privileges and low complexity to cause information disclosure without user interaction. The vulnerability has been assigned a CVSS 3.1 base score of 5.5, indicating medium severity. Microsoft has released an official fix to remediate this issue.
Potential Impact
Successful exploitation of this vulnerability could allow an attacker with local access and low privileges to read memory outside the intended bounds, potentially disclosing sensitive information. There is no impact on integrity or availability. No known exploits are reported in the wild at this time.
Mitigation Recommendations
An official fix is available from Microsoft. It is recommended to apply the security update provided in the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-21257 to remediate this vulnerability.
CVE-2025-21257: CWE-125: Out-of-bounds Read in Microsoft Windows 10 Version 1607
Description
Windows WLAN AutoConfig Service Information Disclosure Vulnerability
CVSS v3.1
Score 5.5medium
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2025-21257) involves an out-of-bounds read (CWE-125) in the Windows WLAN AutoConfig Service on Windows 10 Version 1607 (build 10.0.14393.0). The flaw allows an attacker with local privileges and low complexity to cause information disclosure without user interaction. The vulnerability has been assigned a CVSS 3.1 base score of 5.5, indicating medium severity. Microsoft has released an official fix to remediate this issue.
Potential Impact
Successful exploitation of this vulnerability could allow an attacker with local access and low privileges to read memory outside the intended bounds, potentially disclosing sensitive information. There is no impact on integrity or availability. No known exploits are reported in the wild at this time.
Mitigation Recommendations
An official fix is available from Microsoft. It is recommended to apply the security update provided in the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-21257 to remediate this vulnerability.
Technical Details
- Data Version
- 5.1
- Assigner Short Name
- microsoft
- Date Reserved
- 2024-12-10T23:54:12.933Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-21257","vendor":"Microsoft"}]
Threat ID: 68c0bd4f9ed239a66badeae6
Added to database: 09/09/2025, 23:50:39 UTC
Last enriched: 06/10/2026, 09:46:51 UTC
Last updated: 09/10/2026, 19:36:49 UTC
Views: 105
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