CVE-2026-66317: Microsoft Edge (Chromium-based) Tampering Vulnerability
Microsoft Edge (Chromium-based) Tampering Vulnerability
Other sources
Origin validation error in Microsoft Edge (Chromium-based) allows an unauthorized attacker to perform tampering 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-2026-66317?
The severity of CVE-2026-66317 is rated as medium with a score of 5.4.
How do I fix CVE-2026-66317?
To fix CVE-2026-66317, ensure that you have the latest update for Microsoft Edge (Chromium-based) installed.
What does CVE-2026-66317 affect?
CVE-2026-66317 affects Microsoft Edge (Chromium-based) software.
What type of vulnerability is CVE-2026-66317?
CVE-2026-66317 is categorized as a tampering vulnerability due to an origin validation error.
Can CVE-2026-66317 be exploited remotely?
Yes, CVE-2026-66317 can be exploited remotely over a network by an unauthorized attacker.