Cyber Resilience

CVE-2026-58289

Critical

Published: 03 July 2026

Published
03 July 2026
Modified
03 July 2026
KEV Added
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Patch
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CVSS Score v3.1 9.0 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
EPSS Score N/A
Risk Priority 70 floored blend · peak EPSS

Summary

CVE-2026-58289 is a critical-severity Type Confusion (CWE-843) vulnerability. Its CVSS base score is 9.0 (Critical).

Operationally, it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

Access of resource using incompatible type ('type confusion') in Microsoft Edge (Chromium-based) allows an unauthorized attacker to execute code over a network.

CWE(s)
CWE-843

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

Mitigating Controls

No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.

References