CVE-2026-58290
An attacker can exploit multiple vulnerabilities in Microsoft Edge to gain elevated privileges, execute arbitrary code, bypass security measures, conduct spoofing and cross-site scripting attacks, disclose sensitive information, or trigger a denial-of-service condition.
CSIRTS triage
- What
- An attacker can exploit multiple vulnerabilities in Microsoft Edge to gain elevated privileges, execute arbitrary code, bypass security measures, conduct spoofing and cross-site scripting attacks, disclose sensitive information, or trigger a denial-of-service condition.
- Who is affected
- Users of Microsoft Edge across various deployments.
- Urgency
- Remediation is high urgency due to the wide range of potential impacts.
- Action
- Update Microsoft Edge to the latest version.
AI-assisted analysis generated from the source advisory — verify against the original.
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Exploitation outlook
- Low exploitation risk0.25% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 16% of all EPSS-scored CVEs.
Advisory coverage (4)
- high[NEW] [high] Microsoft Edge: Multiple vulnerabilitiescert-bund · 2026-07-09
- unknownMultiple vulnerabilities in Microsoft Edge (July 7, 2026)cert-fr-avis · 2026-07-07
- highCVE-2026-58290: Access of resource using incompatible type ('type confusion') in Microsoft Edge (Chromium-base…nvd · 2026-07-03
- highCVE-2026-58290: Microsoft Edge (Chromium-based) Remote Code Execution Vulnerabilitymsrc · 2026-07-02
External references
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[](https://www.csirts.com/cve/CVE-2026-58290)