CVE-2026-70339
A remote, anonymous attacker can exploit a vulnerability in Microsoft Edge to execute arbitrary code.
CSIRTS triage
- What
- A code execution vulnerability allows remote anonymous attackers to execute arbitrary code.
- Who is affected
- All users of Microsoft Edge are exposed to remote exploitation.
- Urgency
- High priority due to remote code execution capability affecting all Edge users without authentication.
- Action
- Update Microsoft Edge to the latest patched version immediately.
AI-assisted analysis generated from the source advisory — verify against the original.
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Exploitation outlook
- Low exploitation risk0.24% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 15% of all EPSS-scored CVEs.
Advisory coverage (4)
- medium[NEW] [medium] Microsoft Edge: Vulnerability Enables Code Executioncert-bund · 2026-08-12
- unknownMultiple vulnerabilities in Microsoft Edge (August 12, 2026)cert-fr-avis · 2026-08-12
- mediumCVE-2026-70339: Access of resource using incompatible type ('type confusion') in Microsoft Edge (Chromium-base…nvd · 2026-08-11
- mediumCVE-2026-70339: Microsoft Edge (Chromium-based) Remote Code Execution Vulnerabilitymsrc · 2026-08-11
External references
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[](https://www.csirts.com/cve/CVE-2026-70339)