CVE-2026-72970
Heap-based buffer overflow in Microsoft Edge (Chromium-based) allows an unauthorized attacker to execute code over a network.
CSIRTS triage
- What
- A heap-based buffer overflow in the Chromium engine allows remote code execution.
- Who is affected
- Microsoft Edge users on any platform running vulnerable versions.
- Urgency
- High; CVSS 8.3 with demonstrated RCE capability warrants urgent patching.
- Action
- Update Microsoft Edge to the latest available version immediately.
AI-assisted analysis generated from the source advisory — verify against the original.
⚡ Watch CVE-2026-72970
Get an email if CVE-2026-72970 is added to CISA KEV, gains public exploit code, or a new advisory cites it — max one per day, one-click unsubscribe.
Exploitation outlook
- Low exploitation risk0.51% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 41% of all EPSS-scored CVEs.
Advisory coverage (3)
- unknownMicrosoft Edge Multiple Vulnerabilitieshkcert · 2026-08-17
- highCVE-2026-72970: Heap-based buffer overflow in Microsoft Edge (Chromium-based) allows an unauthorized attacker …nvd · 2026-08-14
- highCVE-2026-72970: Microsoft Edge (Chromium-based) Remote Code Execution Vulnerabilitymsrc · 2026-08-11
External references
Embed the live status
— this badge updates automatically when the KEV or exploit status changes. How to embed it →
[](https://www.csirts.com/cve/CVE-2026-72970)