Buffer overflow in Google Chrome
CVE-2021-4098
Insufficient data validation in Mojo in Google Chrome prior to 96.0.4664.110 allowed a remote attacker who had compromised the renderer process to potentially perform a sandbox escape via a crafted HTML page.
Vulnerability class: TOCTOU (Time-of-Check to Time-of-Use)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.4 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:H/A:N.
EPSS exploit prediction
EPSS: 0.006 (49.0th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 49th percentile — 49.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000
Affected products
- Google Chrome — versions unspecified
Weakness classification (CWE)
References
- crbug.com/1263457 (Permissions Required, Vendor Advisory)
- chromereleases.googleblog.com/2021/12/stable-channel-update-for-desktop_13.html (Release Notes, Vendor Advisory)
Frequently asked questions
- What is CVE-2021-4098?
- CVE-2021-4098 is a high-severity vulnerability in Google Chrome, classified under Time-of-check Time-of-use (TOCTOU) Race Condition. CVSS score: 7.4/10. Published 2022-02-11.
- How severe is CVE-2021-4098?
- High severity. CVSS v3 base score is 7.4 out of 10.