CVE-2026-58281
Microsoft Edge (Chromium-based) Remote Code Execution vulnerability
MSRC advisory July 11, 2026
Alert details
- Source feed
- Microsoft MSRC
- CVE ID
- CVE-2026-58281
- Affected products
- Microsoft Edge (Chromium-based) Remote Code Execution · Microsoft Microsoft Edge (Chromium-based) Remote Code Execution · Microsoft
What happened
Deserialization of untrusted data 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-2026-58281) was added to Microsoft’s security update guidance. Deserialization of untrusted data 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-2026-69486) 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) Elevation of Privilege vulnerability
Microsoft Edge (Chromium-based) Elevation of Privilege vulnerability (CVE-2026-88097) was added to Microsoft’s security update guidance. <p>Use after free in Microsoft Edge (Chromium-based) allows an unauthorized attacker to elevate privileges locally.</p> If you need help checking exposure, call (864) 335-9223.
Out of bounds memory access in V8 in Microsoft Edge vulnerability
Out of bounds memory access in V8 in Microsoft Edge vulnerability (CVE-2026-0899) was added to Microsoft’s security update guidance. Information published. If you need help checking exposure, call (864) 335-9223.
Azure Cosmos DB Elevation of Privilege vulnerability
Azure Cosmos DB Elevation of Privilege vulnerability (CVE-2026-87701) was added to Microsoft’s security update guidance. <p>Improper neutralization of special elements in output used by a downstream component ('injection') in Azure Cosmos DB allows an authorized attacker to elevate privileges over a network.</p> 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.