CVE-2026-66310: CWE-73: External Control of File Name or Path in Microsoft Microsoft Edge for Android
External control of file name or path in Microsoft Edge for Android allows an unauthorized attacker to disclose information locally.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-66310) in Microsoft Edge for Android is categorized under CWE-73 (External Control of File Name or Path). It allows an attacker without privileges and without user interaction to cause local information disclosure by manipulating file names or paths externally. The CVSS v3.1 score is 7.7, indicating high impact on confidentiality and integrity but no impact on availability. Microsoft has published an official fix for this vulnerability.
Potential Impact
The vulnerability enables unauthorized local information disclosure, potentially exposing sensitive data on the affected device. The integrity of the application or system may also be impacted due to external control over file paths or names. There is no known exploitation in the wild at this time.
Mitigation Recommendations
An official fix is available from Microsoft. Users and administrators should apply the security update for Microsoft Edge for Android version 1.0.0 as provided in the Microsoft Security Response Center advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-66310. No additional mitigation steps are indicated by the vendor.
CVE-2026-66310: CWE-73: External Control of File Name or Path in Microsoft Microsoft Edge for Android
Description
External control of file name or path in Microsoft Edge for Android allows an unauthorized attacker to disclose information locally.
CVSS v3.1
Score 7.7high
Affected software
Microsoft
Microsoft Edge for Android
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Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-66310) in Microsoft Edge for Android is categorized under CWE-73 (External Control of File Name or Path). It allows an attacker without privileges and without user interaction to cause local information disclosure by manipulating file names or paths externally. The CVSS v3.1 score is 7.7, indicating high impact on confidentiality and integrity but no impact on availability. Microsoft has published an official fix for this vulnerability.
Potential Impact
The vulnerability enables unauthorized local information disclosure, potentially exposing sensitive data on the affected device. The integrity of the application or system may also be impacted due to external control over file paths or names. There is no known exploitation in the wild at this time.
Mitigation Recommendations
An official fix is available from Microsoft. Users and administrators should apply the security update for Microsoft Edge for Android version 1.0.0 as provided in the Microsoft Security Response Center advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-66310. No additional mitigation steps are indicated by the vendor.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-07-24T18:06:51.295Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-66310","vendor":"Microsoft"}]
Threat ID: 6a7121fcbf32cb7a3462c055
Added to database: 08/03/2026, 23:19:24 UTC
Last enriched: 08/11/2026, 14:56:08 UTC
Last updated: 09/18/2026, 01:04:25 UTC
Views: 57
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