Use After Free in Microsoft Edge
CVE-2021-30623
Chromium: CVE-2021-30623 Use after free in Bookmarks
Vulnerability class: Use-After-Free
EPSS: 0.040 (89.3th 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)
Public proof-of-concept exploits
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-2021-30623?
- CVE-2021-30623 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-2021-30623?
- High severity. CVSS v3 base score is 8.8 out of 10.
- Is CVE-2021-30623 known to be exploited?
- 4 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.