Use After Free in Google Chrome
CVE-2021-4322
Use after free in DevTools in Google Chrome prior to 91.0.4472.77 allowed an attacker who convinced a user to install a malicious extension to execute arbitrary code via a crafted Chrome Extension. (Chromium security severity: Medium)
Vulnerability class: Use-After-Free
Published · last modified .
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: 0.005 (43.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 43rd percentile — 43.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000
Affected products
- Google Chrome — versions 91.0.4472.77
Weakness classification (CWE)
References
- chromereleases.googleblog.com/2021/05/stable-channel-update-for-desktop_25.html (Release Notes, Vendor Advisory)
- crbug.com/1190550 (Exploit, Issue Tracking, Vendor Advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/…
Frequently asked questions
- What is CVE-2021-4322?
- CVE-2021-4322 is a high-severity vulnerability in Google Chrome, classified under Use After Free. CVSS score: 8.8/10. Published 2023-07-29.
- How severe is CVE-2021-4322?
- High severity. CVSS v3 base score is 8.8 out of 10.