CVE-2021-27852

State: Published
Severity: 9.8 Critical
Published: May 27, 2021
Updated: Oct 21, 2025
Reserved: Mar 1, 2021

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.

Scores

CVSS	Score	Vector	Source
3.1	9.8 Critical	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H	certcc

Weaknesses

CWE-502 Deserialization of Untrusted Data

Affected Products

Product	Versions
SurveyCheckbox	before 7Affected

References

https://www.kb.cert.org/vuls/id/706695
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-27852government-resource

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