What is CVE-2026-58299?

CVE-2026-58299 is a security advisory published by Microsoft Security Response Center (MSRC) with High severity. Microsoft Edge for Android Remote Code Execution Vulnerability

Which CVE IDs does CVE-2026-58299 cover?

CVE-2026-58299 covers the following CVE IDs: CVE-2026-58299. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of CVE-2026-58299?

CVE-2026-58299 has a CVSS v3 base score of 7.5, published by Microsoft Security Response Center (MSRC).

Which products are affected by CVE-2026-58299?

CVE-2026-58299 affects 1 product, including: Microsoft Edge (Chromium-based).

CVE-2026-58299HighCVSS 7.5

Microsoft Edge for Android Remote Code Execution Vulnerability

Vendor

Microsoft Security Response Center (MSRC)

Published

July 7, 2026

Last Modified

—

🔗 CVE IDs covered (1)

CVE-2026-58299 →

📋 Description

Time-of-check time-of-use (toctou) race condition in Microsoft Edge for Android allows an unauthorized attacker to execute code over a network.

🎯 Affected products1

Microsoft Edge (Chromium-based)

✅ Remediation

KBRelease Notes (Security Update) — fixed build 150.0.4078.48

🔗 References (2)

advisoryhttps://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-58299
referencehttps://docs.microsoft.com/en-us/DeployEdge/microsoft-edge-relnotes-security