EUVD-2026-41586
GHSA-39f3-ggrp-rph3
Severity by source
AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H
Network-delivered malicious page (AV:N) needing user visit (UI:R) and a non-trivial reliable trigger (AC:H); no auth (PR:N); sandbox-crossing type confusion yields total impact (S:C, C/I/A:H).
Primary rating from Vendor (microsoft).
CVSS VectorNVD
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H
Lifecycle Timeline
7DescriptionNVD
Access of resource using incompatible type ('type confusion') in Microsoft Edge (Chromium-based) allows an unauthorized attacker to execute code over a network.
AnalysisAI
Remote code execution in Microsoft Edge (Chromium-based) before 150.0.4078.48 allows an unauthenticated attacker to run arbitrary code when a victim is lured to a malicious web page, via a type-confusion flaw (CWE-843) in the browser engine. The CVSS:3.1 score is 8.3 with a scope change (S:C), indicating a likely sandbox/renderer boundary escape, though exploitation carries high attack complexity and requires user interaction. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires the victim to actively load attacker-controlled web content in a vulnerable Edge build (before 150.0.4078.48) - the UI:R metric confirms mandatory user interaction (visiting a malicious or compromised page), and no authentication is required (PR:N). … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | Signals are mixed and point to a serious-but-not-emergency priority. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | An attacker hosts a malicious web page (or injects malicious script into a compromised/ad-served page) containing JavaScript crafted to trigger the type-confusion condition in Edge's engine, then lures a victim to visit it via phishing or a malicious link. When the page loads, the type confusion yields a memory-corruption primitive that the attacker leverages to execute arbitrary code in the browser process; the scope change (S:C) implies potential escape beyond the initial sandboxed context. … |
| Remediation | Vendor-released patch: update Microsoft Edge (Chromium-based) to version 150.0.4078.48 or later, as published in Microsoft's MSRC advisory (https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-58289). … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours: Identify and catalog all systems running Microsoft Edge versions before 150.0.4078.48; notify endpoint owners of imminent required update. …
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Security-feature bypass in Microsoft Edge (Chromium-based) versions prior to 150.0.4078.48 lets a remote, unauthenticate
Remote code execution in Microsoft Edge (Chromium-based) stems from a use-after-free memory corruption flaw (CWE-416) th
Remote code execution in Microsoft Edge (Chromium-based) allows an unauthenticated attacker to run arbitrary code by lur
Remote code execution in Microsoft Edge (Chromium-based) stems from a heap-based buffer overflow (CWE-122) that a networ
Remote code execution in Microsoft Edge (Chromium-based) before version 150.0.4078.48 allows an unauthenticated remote a
Remote code execution in Microsoft Edge (Chromium-based) stems from a use-after-free (CWE-416) memory-corruption flaw th
Remote code execution in Microsoft Edge (Chromium-based) lets an unauthenticated network attacker run arbitrary code by
Privilege elevation in Microsoft Edge (Chromium-based) lets a network attacker escalate privileges by luring a victim in
Remote code execution in Microsoft Edge (Chromium-based) stems from a use-after-free (CWE-416) memory-corruption flaw th
Remote code execution in Microsoft Edge (Chromium-based) via a type-confusion flaw (CWE-843) lets an unauthorized attack
Remote code execution in Microsoft Edge (Chromium-based) allows an unauthorized attacker to run arbitrary code when a vi
Remote code execution in Microsoft Edge (Chromium-based) allows an unauthorized attacker to break out of the browser's s
Same technique Memory Corruption
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External POC / Exploit Code
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