Automation Boundary
This is an automated CVE watchlist article generated from public vulnerability-prioritization feeds. It is not a reviewed threat-activity brief and does not claim active exploitation unless the source data includes an exploitation signal.
CVE Snapshot
- CVE: CVE-2026-58289
- Daily rank: 9
- Severity: CRITICAL
- CVSS: 9.0
- EPSS percentile: 40.9%
- Exploitation signal in source data: no
- NVD publication time: 2026-07-03T21:17:03.640Z
Source Summary
Access of resource using incompatible type ('type confusion') in Microsoft Edge (Chromium-based) allows an unauthorized attacker to execute code over a network.
Defender Review Notes
- Confirm whether the affected product appears in your environment before escalating.
- Check vendor guidance and patch availability from the linked NVD reference.
- Treat this as prioritization input, not incident evidence, when no exploitation signal is present.
- Promote to reviewed threat activity only if a reliable source later documents exploitation, campaign use, actor activity, ransomware use, or CISA KEV inclusion.
Source Notes
This article was generated from the daily digest 2026-07-04-top-10-cves using NVD publication data, CISA KEV context, and FIRST EPSS enrichment.