CVE-2026-58282: CWE-284: Improper Access Control in Microsoft Microsoft Edge (Chromium-based)
Improper access control in Microsoft Edge (Chromium-based) allows an unauthorized attacker to perform spoofing over a network.
AI Analysis
Technical Summary
This vulnerability, identified as CWE-284 (Improper Access Control), exists in Microsoft Edge (Chromium-based) version 1.0.0.0. It allows an unauthorized attacker to conduct spoofing attacks over a network by exploiting insufficient access control mechanisms. The CVSS v3.1 base score is 8.1, indicating high severity, with network attack vector, high impact on integrity, and low impact on confidentiality and availability. Microsoft has published an official fix for this vulnerability.
Potential Impact
An attacker without privileges can exploit this vulnerability remotely to perform spoofing attacks, potentially misleading users or systems by impersonating legitimate entities. This can lead to high integrity impact and some loss of confidentiality and availability as indicated by the CVSS vector.
Mitigation Recommendations
Microsoft has released an official fix for this vulnerability. Users and administrators should apply the available patch from the Microsoft Security Response Center advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-58282 to remediate the issue.
CVE-2026-58282: CWE-284: Improper Access Control in Microsoft Microsoft Edge (Chromium-based)
Description
Improper access control in Microsoft Edge (Chromium-based) allows an unauthorized attacker to perform spoofing over a network.
CVSS v3.1
Score 8.1high
Affected software
Microsoft
Microsoft Edge (Chromium-based)
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Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability, identified as CWE-284 (Improper Access Control), exists in Microsoft Edge (Chromium-based) version 1.0.0.0. It allows an unauthorized attacker to conduct spoofing attacks over a network by exploiting insufficient access control mechanisms. The CVSS v3.1 base score is 8.1, indicating high severity, with network attack vector, high impact on integrity, and low impact on confidentiality and availability. Microsoft has published an official fix for this vulnerability.
Potential Impact
An attacker without privileges can exploit this vulnerability remotely to perform spoofing attacks, potentially misleading users or systems by impersonating legitimate entities. This can lead to high integrity impact and some loss of confidentiality and availability as indicated by the CVSS vector.
Mitigation Recommendations
Microsoft has released an official fix for this vulnerability. Users and administrators should apply the available patch from the Microsoft Security Response Center advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-58282 to remediate the issue.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-06-29T21:59:30.870Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-58282","vendor":"Microsoft"}]
Threat ID: 6a48210227e9c79719accbdf
Added to database: 07/03/2026, 20:52:18 UTC
Last enriched: 08/17/2026, 14:11:36 UTC
Last updated: 10/02/2026, 14:55:28 UTC
Views: 149
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