CVE-2026-57983: CWE-285: Improper Authorization in Microsoft Microsoft Edge (Chromium-based)
Improper authorization in Microsoft Edge (Chromium-based) allows an unauthorized attacker to bypass a security feature over a network.
AI Analysis
Technical Summary
This vulnerability, identified as CWE-285 (Improper Authorization), exists in Microsoft Edge (Chromium-based) version 1.0.0.0. It enables an attacker without privileges to bypass security controls remotely. The CVSS v3.1 base score is 8.7, indicating high severity, with network attack vector, high attack complexity, no privileges required, no user interaction, and impacts on confidentiality and integrity. Microsoft has published an official fix, as confirmed by their advisory.
Potential Impact
An attacker can bypass security features remotely without authentication, potentially leading to unauthorized access to sensitive information and modification of data within the affected browser. There is no reported impact on availability. No known exploits are currently in the wild.
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-2026-57983 to remediate this vulnerability.
CVE-2026-57983: CWE-285: Improper Authorization in Microsoft Microsoft Edge (Chromium-based)
Description
Improper authorization in Microsoft Edge (Chromium-based) allows an unauthorized attacker to bypass a security feature over a network.
CVSS v3.1
Score 8.7high
Affected software
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Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability, identified as CWE-285 (Improper Authorization), exists in Microsoft Edge (Chromium-based) version 1.0.0.0. It enables an attacker without privileges to bypass security controls remotely. The CVSS v3.1 base score is 8.7, indicating high severity, with network attack vector, high attack complexity, no privileges required, no user interaction, and impacts on confidentiality and integrity. Microsoft has published an official fix, as confirmed by their advisory.
Potential Impact
An attacker can bypass security features remotely without authentication, potentially leading to unauthorized access to sensitive information and modification of data within the affected browser. There is no reported impact on availability. No known exploits are currently in the wild.
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-2026-57983 to remediate this vulnerability.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-06-26T17:45:44.854Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-57983","vendor":"Microsoft"}]
Threat ID: 6a48210127e9c79719accb4d
Added to database: 07/03/2026, 20:52:17 UTC
Last enriched: 08/10/2026, 13:40:20 UTC
Last updated: 08/17/2026, 00:41:13 UTC
Views: 65
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