CVE-2021-27852

Published May 27, 2021 CVSS 3.1 · 9.8 Critical EPSS 30.3% KEV · Listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics epss

{'score': 0.22109}

epss

{'score': 0.21145}

Type Values Removed Values Added
Metrics kev

{'dateAdded': '2022-04-11'}

ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'active', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
certcc
Published
Updated
Oct 21, 2025, 11:25 PM
Reserved
Mar 1, 2021, 12:00 AM
Status
Analyzed
Published
May 27, 2021, 9:15 PM
Modified
Jun 17, 2026, 3:45 AM