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8.3

Microsoft Edge (Chromium-based) Can Execute Unwanted Code Remotely

CVE-2026-58281 · published 3 months ago
Summary

If not updated, Microsoft Edge users may be at risk of hackers executing malicious code on their devices without permission. This is a serious security risk because it allows attackers to take control of a device. Microsoft will likely release a patch to fix this issue, so it's essential to keep Edge up to date to stay protected.

What to do
  • Update microsoft microsoft edge (chromium-based) to version 150.0.4078.48 or later.
  • Update microsoft edge_chromium to version 150.0.4078.48 or later.
Affected software
VendorProductAffected versions
microsoft microsoft edge (chromium-based) < 150.0.4078.48
microsoft edge_chromium < 150.0.4078.48
cpe:2.3:a:microsoft:edge_chromium:*:*:*:*:-:*:*:*
Original advisory text
Microsoft Edge (Chromium-based) Remote Code Execution Vulnerability
Deserialization of untrusted data in Microsoft Edge (Chromium-based) allows an unauthorized attacker to execute code over a network.
References
Fix within
Internet-facing 14 days
Internal At next upgrade
  • Not known to be exploited
  • Needs hands-on effort to exploit
  • Gives an attacker full control
Severity
8.3 High
Exploitation
<1% chance of attack within 30 days
Type
CWE-502Deserialization of Untrusted Data
Timeline
Published11 Jul 2026
Updated4 Nov 2026
First seen11 Jul 2026
Sources
CVE-2026-58281 · NVD
CVE-2026-58281 · MITRE
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