What is CVE-2026-72984?

CVE-2026-72984 is a high-severity vulnerability in Microsoft Edge Chromium, classified under Access of Resource Using Incompatible Type (Type Confusion). CVSS score: 8.8/10. Published 2026-08-28.

How severe is CVE-2026-72984?

High severity. CVSS v3 base score is 8.8 out of 10.

Vulnerability in Microsoft Edge Chromium

CVE-2026-72984

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

Published 2026-08-28 · last modified 2026-09-11.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.008 (56.0th percentile), scored 2026-10-13.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 56th percentile — 56.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.004 · newest: 0.008 · change: +0.004

Affected products

Weakness classification (CWE)

CWE-843 — Access of Resource Using Incompatible Type (Type Confusion)

References

Microsoft Edge (Chromium-based) Remote Code Execution Vulnerability (vendor-advisory, patch, Vendor Advisory)

Frequently asked questions

What is CVE-2026-72984?: CVE-2026-72984 is a high-severity vulnerability in Microsoft Edge Chromium, classified under Access of Resource Using Incompatible Type (Type Confusion). CVSS score: 8.8/10. Published 2026-08-28.
How severe is CVE-2026-72984?: High severity. CVSS v3 base score is 8.8 out of 10.