CVE-2021-27852

CRITICALCISA KEV

9.8

Description

Deserialization of Untrusted Data vulnerability in CheckboxWeb.dll of Checkbox Survey allows an unauthenticated remote attacker to execute arbitrary code. This issue affects: Checkbox Survey versions prior to 7.

CVE Details

CVSS v3.1 Score9.8

SeverityCRITICAL

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

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredNONE

User InteractionNONE

Published5/27/2021

Last Modified10/24/2025

Sourcekev

Honeypot Sightings0

CISA KEV

VendorCheckbox

ProductCheckbox Survey

Vulnerability NameCheckbox Survey Deserialization of Untrusted Data Vulnerability

KEV Date Added2022-04-11

Remediation Due Date2022-05-02

Ransomware UseUnknown

Affected Products

checkbox:survey

Weaknesses (CWE)

CWE-502CWE-502

References

https://www.kb.cert.org/vuls/id/706695(cret@cert.org)

https://www.kb.cert.org/vuls/id/706695(af854a3a-2127-422b-91ae-364da2661108)

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-27852(134c704f-9b21-4f2e-91b3-4a467353bcc0)

IOC Correlations

No correlations recorded

This product uses data from the NVD API but is not endorsed or certified by the NVD.