🟡 Medium | Source: Microsoft Security Response Center
CVE-2026-45489 is a spoofing vulnerability in Microsoft Edge (Chromium-based), meaning an attacker could potentially deceive users by manipulating how content or identity is displayed within the browser. This update is an informational change only, adding a CWE (Common Weakness Enumeration) classification with no change to the underlying vulnerability details or patch status. No new action is required as a result of this update.
Security Architect’s Take: No immediate remediation action is required — this is a metadata update only. However, ensure your organisation’s Edge deployments are already patched to the version that addressed CVE-2026-45489, and confirm your browser patch compliance reporting captures this CVE correctly.
Original advisory: CVE-2026-45489 Microsoft Edge (Chromium-based) Spoofing Vulnerability