CVE-2026-66322: Microsoft Edge (Chromium-based) Spoofing Vulnerability
Microsoft Edge (Chromium-based) Spoofing Vulnerability
Other sources
Origin validation error in Microsoft Edge (Chromium-based) allows an unauthorized attacker to perform spoofing over a network.
— 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 151.0.4129.59
Event History
Frequently Asked Questions
What is the severity of CVE-2026-66322?
The severity of CVE-2026-66322 is rated high with a score of 7.1.
What does CVE-2026-66322 affect?
CVE-2026-66322 affects Microsoft Edge (Chromium-based) and allows unauthorized spoofing.
How does CVE-2026-66322 compromise security?
CVE-2026-66322 compromises security through an origin validation error that permits spoofing over a network.
How do I fix CVE-2026-66322?
To fix CVE-2026-66322, ensure that you update to the latest version of Microsoft Edge (Chromium-based).
What is the potential impact of CVE-2026-66322?
The potential impact of CVE-2026-66322 includes unauthorized spoofing that can lead to data exposure or compromised user interactions.