CVE-2026-58289

CVSS 9.0 · CRITICAL

EPSS p41

Lower risk — in the top 59% least-likely-to-be-exploited CVEs.

No patch reference

No patch/mitigation in references

Published 7/3/2026 · updated 7/3/2026 · CWE-843

Summary

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

CVSS 9.0 — CRITICAL

9.0 / 10

AV: Network
AC: High complexity
PR: No privileges
UI: No user interaction
S: Scope changed
C: Confidentiality: High
I: Integrity: High
A: Availability: High

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

EPSS exploitation probability

0.5%

Percentile p41 — Lower risk — in the top 59% least-likely-to-be-exploited CVEs.

Timeline

Jul 3, 2026 · Disclosed / published in NVD

Intel sources

Which upstream feeds returned data for this CVE, and when they were last fetched.

NVD· 29 days ago
CVE.org· 29 days ago
FIRST EPSS· 29 days ago
CISA KEV· no data
OSV· 29 days ago

References

Other1

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-58289

Unlock the full report

See how CVE-2026-58289 hits your stack.

Free public data ends here. Sign in to correlate this CVE against your SBOM and assets, get an AI-grounded exploit chain, generate a ModSecurity virtual patch, and share findings with your team.

· Asset-aware CVSS & priority
· Grounded AI analysis (A–D graded)
· Auto-generated WAF / IPS rules
· Jira, SIEM, Slack, Teams delivery

No credit card · 100 free enrichments · analyst-grade citations.