Vulnerability · Published Feb 9, 2021 · Assigned by Chrome
CVE-2021-21139
Medium 6.5
In plain English
A medium-severity security flaw in Chrome from Google. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 5.1% (higher than 92% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)6.5Medium
Exploit odds (30 days)5.1%top 7.6% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official 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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | chromium | 88.0.4324.96-0.1 | DEBIAN-CVE-2021-21139 |
| Debian:13 | chromium | 88.0.4324.96-0.1 | DEBIAN-CVE-2021-21139 |
| Debian:14 | chromium | 88.0.4324.96-0.1 | DEBIAN-CVE-2021-21139 |
Affected products (as reported)
References
- https://chromereleases.googleblog.com/2021/01/stable-channel-update-for-desktop_19.html x_refsource_MISC
- https://crbug.com/937131 x_refsource_MISC
- https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-21139 x_refsource_MISC