CVE-2026-58284

HIGHCVSS 8.3/10EPSS 0.41%

Last modified

CVE-2026-58284 is a high-severity vulnerability rated 8.3/10 on the CVSS scale. Improper authorization in Microsoft Edge (Chromium-based) allows an unauthorized attacker to execute code over a network.. EPSS estimates a 0.41% chance of exploitation in the next 30 days.

Description

Improper authorization in Microsoft Edge (Chromium-based) allows an unauthorized attacker to execute code over a network.

Metrics

CVSS 3.1
8.3/10

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H

EPSS Probability
0.41%

33.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
MicrosoftEdge Chromium< 150.0.4078.48

References

Timeline

Published
Last Modified
Status
Analyzed

Frequently Asked Questions

What is CVE-2026-58284?
Improper authorization in Microsoft Edge (Chromium-based) allows an unauthorized attacker to execute code over a network.
How severe is CVE-2026-58284?
CVE-2026-58284 has a CVSS score of 8.3/10 (HIGH severity). The EPSS model estimates a 0.41% probability of exploitation in the next 30 days.
How do I fix CVE-2026-58284?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

How Strix Helps

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Source: NVD / NIST