CVE-2021-27852 - Vulnerability Details - OpenCVE

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.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

Access Vector Network

Access Complexity Low

Authentication None

Confidentiality Impact Partial

Integrity Impact Partial

Availability Impact Partial

This CVE is in the KEV database since April 11, 2022.

The EPSS score is 0.19983.

Exploitation active

Automatable yes

Technical Impact total

Vendors	Products
Checkbox	Survey

Configuration 1 [-]

cpe:2.3:a:checkbox:survey:*:*:*:*:*:*:*:*

No data.

No data.

Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References

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

History

Wed, 22 Oct 2025 00:15:00 +0000

Type	Values Removed	Values Added
References		https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-27852

Tue, 21 Oct 2025 20:30:00 +0000

Type	Values Removed	Values Added
References	https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-27852

Tue, 21 Oct 2025 19:30:00 +0000

Type	Values Removed	Values Added
References		https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-27852

Sun, 13 Jul 2025 13:45:00 +0000

Type	Values Removed	Values Added
Metrics	epss `{'score': 0.22109}`	epss `{'score': 0.21145}`

Thu, 06 Feb 2025 20:15:00 +0000

Type	Values Removed	Values Added
Metrics		kev `{'dateAdded': '2022-04-11'}` ssvc `{'options': {'Automatable': 'yes', 'Exploitation': 'active', 'Technical Impact': 'total'}, 'version': '2.0.3'}`

MITRE

Status: PUBLISHED

Assigner: certcc

Published: 2021-05-27T20:55:11.000Z

Updated: 2025-10-21T23:25:44.136Z

Reserved: 2021-03-01T00:00:00.000Z

Link: CVE-2021-27852

Vulnrichment

Updated: 2024-08-03T21:33:16.318Z

NVD

Status : Modified

Published: 2021-05-27T21:15:20.567

Modified: 2025-10-22T00:17:29.797

Link: CVE-2021-27852

Redhat

No data.

OpenCVE Enrichment

No data.

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