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Microsoft Security Response CenterCVE-2026-45494

Microsoft Edge (Chromium-based) Spoofing Vulnerability

According to the CVSS metrics, successful exploitation of this vulnerability could lead to some loss of confidentiality (C:L), and integrity (I:L) but lead to no loss of availability (A:N). What is the impact of this vulnerability? The Edge browser's tab-splitting feature, which allows users to browse two tabs simultaneously, only displays the domain prefix in the address bars instead of the full URL. This behavior can lead to phishing vulnerabilities, as attackers could exploit it to make malicious websites appear legitimate by mimicking trusted domain names.

Read the vendor bulletin Get alerts for Microsoft Edge (Chromium-based)
5.4CVSS out of 10Medium severity
Scope

What the vendor says is affected

  • Microsoft Edge (Chromium-based)

Versions the vendor lists as fixed

  • 148.0.3967.70
Next step

What the vendor recommends

Release Notes

Review the complete instructions on the vendor's site
Timeline

When this advisory changed

  1. Published by Microsoft Security Response Center

    The publication date reported by the vendor.

  2. Updated by Microsoft Security Response Center

    The vendor changed the advisory after it was first published.

  3. Added to SecurityAlert

    We collected the advisory from the official source.

Vulnerabilities

CVEs named in this advisory

CVE-2026-45494View CVSS, KEV, EPSS, and threat context
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