cve 2026 58597

CVE 2026 58597 is a medium-severity spoofing vulnerability affecting Chromium-based Microsoft Edge. Microsoft published the issue on July 3, 2026, and identified Edge Stable version 150.0.4078.48, released July 2, 2026, as the fixed version. The available information focuses on how spoofing can weaken the trust signals users and administrators depend on when deciding whether browser content is safe. This tag page tracks the reported vulnerability, its Microsoft security guidance, and the associated Edge update. It is relevant for anyone reviewing browser security, validating installed versions, or planning updates across managed Windows environments.