Use After Free in Microsoft Edge

CVE-2021-30608

Chromium: CVE-2021-30608 Use after free in Web Share

Vulnerability class: Use-After-Free

EPSS: 0.041 (89.6th percentile) — read the EPSS interpretation.

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.

Affected products

Microsoft Edge
Microsoft Edge_chromium
Microsoft Edge (Chromium-based) — versions unspecified
Fedoraproject Fedora — versions 35

Weakness classification (CWE)

CWE-416 — Use After Free

References

chrome-cve-admin@google.com (Patch, x_refsource_MISC, Vendor Advisory)
chrome-cve-admin@google.com (x_refsource_FEDORA, vendor-advisory)

Frequently asked questions

What is CVE-2021-30608?: CVE-2021-30608 is a high-severity vulnerability in Microsoft Edge, classified under Use After Free. CVSS score: 8.8/10. Published 2021-09-03.
How severe is CVE-2021-30608?: High severity. CVSS v3 base score is 8.8 out of 10.