CVE-2026-58294
Microsoft Edge (Chromium-based) Remote Code Execution vulnerability
MSRC advisory July 3, 2026
Alert details
- Source feed
- Microsoft MSRC
- CVE ID
- CVE-2026-58294
- Affected products
- Microsoft Edge (Chromium-based) Remote Code Execution · Microsoft Microsoft Edge (Chromium-based) Remote Code Execution · Microsoft
What happened
Use after free in Microsoft Edge (Chromium-based) allows an unauthorized attacker to execute code over a network.
What it means for your business
Microsoft Edge (Chromium-based) Remote Code Execution vulnerability (CVE-2026-58294) was added to Microsoft’s security update guidance. Use after free in Microsoft Edge (Chromium-based) allows an unauthorized attacker to execute code over a network. If you need help checking exposure, call (864) 335-9223.
Sources
Related briefs
Microsoft Edge (Chromium-based) Remote Code Execution vulnerability
Microsoft Edge (Chromium-based) Remote Code Execution vulnerability (CVE-2026-72970) was added to Microsoft’s security update guidance. <p>Heap-based buffer overflow in Microsoft Edge (Chromium-based) allows an unauthorized attacker to execute code over a network.</p> If you need help checking exposure, call (864) 335-9223.
Microsoft Edge (Chromium-based) Remote Code Execution vulnerability
Microsoft Edge (Chromium-based) Remote Code Execution vulnerability (CVE-2026-70339) was added to Microsoft’s security update guidance. Access of resource using incompatible type ('type confusion') in Microsoft Edge (Chromium-based) allows an unauthorized attacker to execute code over a network. If you need help checking exposure, call (864) 335-9223.
Microsoft PowerShell Security Feature Bypass vulnerability
Microsoft PowerShell Security Feature Bypass vulnerability (CVE-2026-70338) was added to Microsoft’s security update guidance. The security updates for Powershell have been updated. If you need help checking exposure, call (864) 335-9223.
Microsoft PowerShell Remote Code Execution vulnerability
Microsoft PowerShell Remote Code Execution vulnerability (CVE-2026-70337) was added to Microsoft’s security update guidance. The security updates for Powershell have been updated. If you need help checking exposure, call (864) 335-9223.
Need help patching?
PremierePC monitors KEV alerts for managed clients and helps teams prioritize remediation before attackers do.