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CVE-2021-21186

MEDIUMCVSS 4.3/10EPSS 1.13%

Last modified

CVE-2021-21186 is a medium-severity vulnerability rated 4.3/10 on the CVSS scale. Insufficient policy enforcement in QR scanning in Google Chrome on iOS prior to 89.0.4389.72 allowed an attacker who convinced the user to scan a QR code to bypass navigation restrictions via a crafted QR code.. EPSS estimates a 1.13% chance of exploitation in the next 30 days.

Description

Insufficient policy enforcement in QR scanning in Google Chrome on iOS prior to 89.0.4389.72 allowed an attacker who convinced the user to scan a QR code to bypass navigation restrictions via a crafted QR code.

Metrics

CVSS 3.1
4.3/10

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

EPSS Probability
1.13%

62.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
GoogleChrome< 89.0.4389.72
FedoraprojectFedora32
FedoraprojectFedora33
FedoraprojectFedora34
DebianDebian Linux10.0

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2021-21186?
Insufficient policy enforcement in QR scanning in Google Chrome on iOS prior to 89.0.4389.72 allowed an attacker who convinced the user to scan a QR code to bypass navigation restrictions via a crafted QR code.
How severe is CVE-2021-21186?
CVE-2021-21186 has a CVSS score of 4.3/10 (MEDIUM severity). The EPSS model estimates a 1.13% probability of exploitation in the next 30 days.
How do I fix CVE-2021-21186?
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-2021-21186?

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

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Source: NVD / NIST