CVE-2026-58294: Microsoft Edge (Chromium-based) Remote Code Execution Vulnerability
Microsoft Edge (Chromium-based) Remote Code Execution Vulnerability
Other sources
Use after free in Microsoft Edge (Chromium-based) allows an unauthorized attacker to execute code 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 150.0.4078.48
Event History
Frequently Asked Questions
What is the severity of CVE-2026-58294?
CVE-2026-58294 has a severity rating of high with a score of 7.5.
How can I fix CVE-2026-58294?
To fix CVE-2026-58294, ensure that you update Microsoft Edge (Chromium-based) to the latest version released by Microsoft.
What type of vulnerability is CVE-2026-58294?
CVE-2026-58294 is classified as a remote code execution vulnerability caused by a use after free issue.
What does CVE-2026-58294 allow an attacker to do?
CVE-2026-58294 allows an unauthorized attacker to execute arbitrary code on a user's system over a network.
Which software is affected by CVE-2026-58294?
CVE-2026-58294 affects Microsoft Edge (Chromium-based) versions developed by Microsoft.