CVE-2021-21111
moderate-risk
Published 2021-01-08
Insufficient policy enforcement in WebUI in Google Chrome prior to 87.0.4280.141 allowed an attacker who convinced a user to install a malicious extension to potentially perform a sandbox escape via a crafted Chrome Extension.
Do I need to act?
-
0.45% chance of exploitation
EPSS score — low exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
9
CVSS 9.6/10
Critical
NETWORK
/ LOW complexity
Affected Products (4)
Affected Vendors
References (12)
Permissions Required
https://crbug.com/1149125
Third Party Advisory
https://security.gentoo.org/glsa/202101-05
Third Party Advisory
https://www.debian.org/security/2021/dsa-4832
Permissions Required
https://crbug.com/1149125
Third Party Advisory
https://security.gentoo.org/glsa/202101-05
Third Party Advisory
https://www.debian.org/security/2021/dsa-4832
44
/ 100
moderate-risk
Severity
32/34 · Critical
Exploitability
2/34 · Minimal
Exposure
10/34 · Low