Vulnerability in Google Chrome
CVE-2021-37973
Use after free in Portals in Google Chrome prior to 94.0.4606.61 allowed a remote attacker who had compromised the renderer process to potentially perform a sandbox escape via a crafted HTML page.
EPSS: 0.148 (94.6th percentile) — read the EPSS interpretation.
Affected products
- Google Chrome — versions unspecified
CISA KEV (Known Exploited Vulnerabilities)
This CVE is on the CISA KEV catalog, added on . CISA KEV inclusion means CISA has confirmed in-the-wild exploitation; US federal agencies are required to remediate within a published due date.
BOD 22-01 due date: .
Required action: Apply updates per vendor instructions.
Public proof-of-concept exploits
References
- crbug.com/1251727 (x_refsource_MISC)
- chromereleases.googleblog.com/2021/09/stable-channel-update-for-desktop_24.html (x_refsource_MISC)
- FEDORA-2021-ab09a05562 (vendor-advisory, x_refsource_FEDORA)
- FEDORA-2021-591b3a2af0 (vendor-advisory, x_refsource_FEDORA)
- DSA-5046 (vendor-advisory, x_refsource_DEBIAN)
Frequently asked questions
- What is CVE-2021-37973?
- CVE-2021-37973 is a vulnerability in Google Chrome. Published 2021-10-08.
- Is CVE-2021-37973 known to be exploited?
- Yes. CVE-2021-37973 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2021-11-03), indicating it is being actively exploited. 4 public proof-of-concept repositories are indexed.