CVE-2021-21139
6.5
MEDIUM
CVSS 3.1
EPSS 4.7%
Description
Inappropriate implementation in iframe sandbox in Google Chrome prior to 88.0.4324.96 allowed a remote attacker to bypass navigation restrictions via a crafted HTML page.
How to fix CVE-2021-21139
To remediate CVE-2021-21139, upgrade the affected package to a fixed version below.
- Debian/chromium—upgrade to 88.0.4324.96-0.1 or later
Is CVE-2021-21139 being exploited?
Low — EPSS is 4.7%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- from 0, < 88.0.4324.96-0.1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM6.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N |