CVE-2021-33605

Name: CVE-2021-33605
Creator: NVD / NIST
Published: 2021-08-25T13:15:07.27+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 4.3/10EPSS 0.59%

Last modified Jun 17, 2026

CVE-2021-33605 is a medium-severity vulnerability rated 4.3/10 on the CVSS scale. Improper check in CheckboxGroup in com.vaadin:vaadin-checkbox-flow versions 1.2.0 prior to 2.0.0 (Vaadin 12.0.0 prior to 14.0.0), 2.0.0 prior to 3.0.0 (Vaadin 14.0.0 prior to 14.5.0), 3.0.0 through 4.0.1 (Vaadin 15.0.0 through 17.0.11), 14.5.0 through 14.6.7 (Vaadin 14.5.0 through 14.6.7), and 18.0.0 through 20.0.5 (Vaadin 18.0.0 through 20.0.5) allows attackers to modify the value of a disabled Checkbox inside enabled CheckboxGroup component via unspecified vectors.. EPSS estimates a 0.59% chance of exploitation in the next 30 days.

Description

Improper check in CheckboxGroup in com.vaadin:vaadin-checkbox-flow versions 1.2.0 prior to 2.0.0 (Vaadin 12.0.0 prior to 14.0.0), 2.0.0 prior to 3.0.0 (Vaadin 14.0.0 prior to 14.5.0), 3.0.0 through 4.0.1 (Vaadin 15.0.0 through 17.0.11), 14.5.0 through 14.6.7 (Vaadin 14.5.0 through 14.6.7), and 18.0.0 through 20.0.5 (Vaadin 18.0.0 through 20.0.5) allows attackers to modify the value of a disabled Checkbox inside enabled CheckboxGroup component via unspecified vectors.

Metrics

CVSS 3.1

4.3/10

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

EPSS Probability

0.59%

43.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Vaadin	Vaadin-Checkbox-Flow	>= 1.2.0, < 2.0.0
Vaadin	Vaadin-Checkbox-Flow	>= 2.0.0, < 3.0.0
Vaadin	Vaadin-Checkbox-Flow	>= 3.0.0, < 4.0.1
Vaadin	Vaadin-Checkbox-Flow	>= 14.5.0, < 14.6.7
Vaadin	Vaadin-Checkbox-Flow	>= 18.0.0, < 20.0.5

References

https://github.com/vaadin/flow-components/pull/1903Patch, Third Party Advisory
https://vaadin.com/security/cve-2021-33605Vendor Advisory
https://github.com/vaadin/flow-components/pull/1903Patch, Third Party Advisory
https://vaadin.com/security/cve-2021-33605Vendor Advisory

Timeline

Published: Aug 25, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-33605?

How severe is CVE-2021-33605?

CVE-2021-33605 has a CVSS score of 4.3/10 (MEDIUM severity). The EPSS model estimates a 0.59% probability of exploitation in the next 30 days.

How do I fix CVE-2021-33605?

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-2021-33605?

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

Scan your code now

Source: NVD / NIST