CVE-2026-58283: Microsoft Edge (Chromium-based) Spoofing Vulnerability
Access of resource using incompatible type ('type confusion') in Microsoft Edge (Chromium-based) allows an unauthorized attacker to perform spoofing over a network.
Other sources
Microsoft Edge (Chromium-based) Spoofing Vulnerability
— Microsoft
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 150.0.4078.48
Event History
Frequently Asked Questions
What is the severity of CVE-2026-58283?
CVE-2026-58283 has a high severity rating of 8.1.
How do I fix CVE-2026-58283?
To fix CVE-2026-58283, ensure that you are using the latest version of Microsoft Edge.
What kind of vulnerability is CVE-2026-58283?
CVE-2026-58283 is a spoofing vulnerability that arises from type confusion in Microsoft Edge.
Who is affected by CVE-2026-58283?
Users of Microsoft Edge (Chromium-based) who have not applied the necessary updates are at risk from CVE-2026-58283.
What can an attacker achieve with CVE-2026-58283?
An attacker can perform spoofing attacks over a network due to the type confusion in Microsoft Edge.