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Microsoft Edge Chromium Based CVE-2026-58287

| EUVDEUVD-2026-41571 HIGH
Use After Free (CWE-416)
2026-07-03 microsoft GHSA-7xpx-9crg-rx5q
8.3
CVSS 3.1 · Vendor: microsoft
Temporal: 7.2
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Severity by source

Vendor (microsoft) PRIMARY
8.3 HIGH
AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H
CIRCL (temporal)
7.2 HIGH
cvss

Primary rating from Vendor (microsoft).

CVSS VectorVendor: microsoft

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H
Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
Required
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

2
Analysis Generated
Jul 03, 2026 - 21:20 vuln.today
CVE Published
Jul 03, 2026 - 20:35 cve.org
HIGH 8.3

DescriptionCVE.org

Use after free in Microsoft Edge (Chromium-based) allows an unauthorized attacker to execute code over a network.

AnalysisAI

Remote code execution in Microsoft Edge (Chromium-based) allows an unauthorized attacker to run arbitrary code when a victim views attacker-controlled web content, stemming from a use-after-free memory-corruption flaw (CWE-416). The scope-changed CVSS vector (S:C) indicates the bug can breach the browser's sandbox boundary. …

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CVE-2026-58287 vulnerability details – vuln.today

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