EUVD-2026-41570
GHSA-9h2j-pmwx-xhhx
Severity by source
AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:H/A:N
Browser flaw requires victim to render attacker content (UI:R) and precise engine grooming (AC:H); spoofing is an integrity-only impact (I:H, C/A:N), with no cross-component scope change.
Primary rating from Vendor (microsoft).
CVSS VectorNVD
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:H/A:N
Lifecycle Timeline
4DescriptionNVD
Access of resource using incompatible type ('type confusion') in Microsoft Edge (Chromium-based) allows an unauthorized attacker to perform spoofing over a network.
AnalysisAI
Spoofing in Microsoft Edge (Chromium-based) stems from a type-confusion memory-safety defect (CWE-843) that a remote, unauthenticated attacker can leverage over the network to misrepresent content or origin to the victim. Microsoft rates it CVSS 8.1 with a changed scope, driven largely by high integrity impact, though the CVSS vector's high attack complexity (AC:H) signals non-trivial exploitation. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires the victim's Edge browser to load and process attacker-controlled web content (a malicious or compromised page / injected resource) that triggers the type-confusion path in the Chromium engine. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The signals are mixed and lean toward moderate real-world priority. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | An attacker hosts a malicious web page containing crafted script that triggers the type-confusion condition in Edge's Chromium engine; when a victim's browser processes it, the flaw is abused to spoof trusted content or origin (for example, faking a security indicator or page identity) and mislead the user. Given AC:H, reliable exploitation requires precise engine-state grooming, and no public proof-of-concept has been identified at time of analysis. |
| Remediation | Patch available per vendor advisory: update Microsoft Edge to the fixed Stable-channel build published by Microsoft - see https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-58283 for the exact version (an explicit fixed version number was not included in the provided input, so confirm it in the advisory before asserting it). … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours: Catalog Microsoft Edge deployments and identify high-value targets (finance, administrative, development teams). …
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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
Remote code execution in Microsoft Edge (Chromium-based) before 150.0.4078.48 allows an unauthenticated attacker to run
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
Same technique Memory Corruption
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External POC / Exploit Code
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