CVE-2026-45489: CWE-749: Exposed Dangerous Method or Function in Microsoft Microsoft Edge (Chromium-based)
Microsoft Edge (Chromium-based) Spoofing Vulnerability
AI Analysis
Technical Summary
This vulnerability, identified as CWE-749 (Exposed Dangerous Method or Function) and also related to CWE-290, affects Microsoft Edge (Chromium-based). It is classified as a spoofing vulnerability where an attacker could exploit an exposed dangerous method or function to deceive users. The CVSS v3.1 base score is 6.5, indicating medium severity, with network attack vector, low attack complexity, no privileges required, user interaction required, unchanged scope, high confidentiality impact, no integrity or availability impact, and official remediation available. Microsoft has published an official fix for this issue.
Potential Impact
The vulnerability can lead to spoofing attacks that may compromise user trust by presenting deceptive content. Confidentiality impact is high, but integrity and availability are not affected. There are no known exploits in the wild at this time.
Mitigation Recommendations
An official fix is available from Microsoft. Users and administrators should apply the vendor-provided patch as detailed in the Microsoft Security Response Center advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45489 to remediate this vulnerability.
CVE-2026-45489: CWE-749: Exposed Dangerous Method or Function in Microsoft Microsoft Edge (Chromium-based)
Description
Microsoft Edge (Chromium-based) Spoofing Vulnerability
CVSS v3.1
Score 6.5medium
Affected software
Microsoft
Microsoft Edge (Chromium-based)
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability, identified as CWE-749 (Exposed Dangerous Method or Function) and also related to CWE-290, affects Microsoft Edge (Chromium-based). It is classified as a spoofing vulnerability where an attacker could exploit an exposed dangerous method or function to deceive users. The CVSS v3.1 base score is 6.5, indicating medium severity, with network attack vector, low attack complexity, no privileges required, user interaction required, unchanged scope, high confidentiality impact, no integrity or availability impact, and official remediation available. Microsoft has published an official fix for this issue.
Potential Impact
The vulnerability can lead to spoofing attacks that may compromise user trust by presenting deceptive content. Confidentiality impact is high, but integrity and availability are not affected. There are no known exploits in the wild at this time.
Mitigation Recommendations
An official fix is available from Microsoft. Users and administrators should apply the vendor-provided patch as detailed in the Microsoft Security Response Center advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45489 to remediate this vulnerability.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-05-12T16:07:22.618Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45489","vendor":"Microsoft"}]
Threat ID: 6a4820ff27e9c79719acc38a
Added to database: 07/03/2026, 20:52:15 UTC
Last enriched: 08/17/2026, 13:55:55 UTC
Last updated: 10/02/2026, 16:51:03 UTC
Views: 125
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