Microsoft Security Response Center guidance
Vendor revision: Jun 1, 2026Release Notes
Vendor-listed releases
- 148.0.3967.70
Overview
What is CVE-2026-45495?
Microsoft Edge (Chromium-based) Remote Code Execution Vulnerability
Source: NVD
CVE intelligence
CVE-2026-45495
Vulnerability intelligence
9.8CRITICALCVSS out of 10
What this means
Review the available evidence
CVE-2026-45495 and is rated Critical severity with a CVSS score of 9.8. It is not in the current CISA KEV record we collected. That does not prove exploitation has not occurred.
Remediation and response
CISA KEVNot listedBased on the latest collected catalog
EPSS1.0%Estimated 30-day exploitation probability
Ransomware useNot markedCISA KEV ransomware field
Threat actors0Source-linked actor relationships