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CVE-2025-65046: Microsoft Edge (Chromium-based) Spoofing Vulnerability

• Severity: low (CVSS 3.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-12-18 · updated 2026-09-30
• Weakness: CWE-451

Description

Microsoft Edge (Chromium-based) Spoofing Vulnerability

Affected products

• Microsoft Edge (Chromium): before 143.0.3650.88 — fixed in 143.0.3650.88
• Microsoft Edge: from 1.0.0 before 143.0.3650.88 — fixed in 143.0.3650.88

How to fix

Upgrade to a fixed version: Microsoft Edge (Chromium) 143.0.3650.88; Microsoft Edge 143.0.3650.88. Check the vendor advisory for mitigations.

References

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-65046

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