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CVE-2021-21226

CRITICALCVSS 9.6/10EPSS 1.35%

Last modified

CVE-2021-21226 is a critical-severity vulnerability rated 9.6/10 on the CVSS scale. Use after free in navigation in Google Chrome prior to 90.0.4430.85 allowed a remote attacker who had compromised the renderer process to potentially perform a sandbox escape via a crafted HTML page.. EPSS estimates a 1.35% chance of exploitation in the next 30 days.

Description

Use after free in navigation in Google Chrome prior to 90.0.4430.85 allowed a remote attacker who had compromised the renderer process to potentially perform a sandbox escape via a crafted HTML page.

Metrics

CVSS 3.1
9.6/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

EPSS Probability
1.35%

68.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
GoogleChrome< 90.0.4430.85
DebianDebian Linux10.0
FedoraprojectFedora32
FedoraprojectFedora33
FedoraprojectFedora34

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2021-21226?
Use after free in navigation in Google Chrome prior to 90.0.4430.85 allowed a remote attacker who had compromised the renderer process to potentially perform a sandbox escape via a crafted HTML page.
How severe is CVE-2021-21226?
CVE-2021-21226 has a CVSS score of 9.6/10 (CRITICAL severity). The EPSS model estimates a 1.35% probability of exploitation in the next 30 days.
How do I fix CVE-2021-21226?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-21226?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST