CVE-2021-27852

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2021-27852
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.

9.8 /10

CVSS v3 : CRITICAL

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

7.5 /10

CVSS v2.0 : HIGH

V2 Legend

Vector : AV:N/AC:L/Au:N/C:P/I:P/A:P

Exploitability : 10.0 / Impact : 6.4

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References
Link Resource
https://www.kb.cert.org/vuls/id/706695 Third Party Advisory US Government Resource
https://www.kb.cert.org/vuls/id/706695 Third Party Advisory US Government Resource
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-27852 US Government Resource
Configurations

Configuration 1 (hide)

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

24 Oct 2025, 14:13

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

22 Oct 2025, 00:17

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

21 Oct 2025, 20:18

Type Values Removed Values Added
References
  • {'url': 'https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-27852', 'source': '134c704f-9b21-4f2e-91b3-4a467353bcc0'}

21 Oct 2025, 19:18

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

21 Nov 2024, 05:58

Type Values Removed Values Added
References () https://www.kb.cert.org/vuls/id/706695 - Third Party Advisory, US Government Resource () https://www.kb.cert.org/vuls/id/706695 - Third Party Advisory, US Government Resource
Information

Published : 2021-05-27 21:15

Updated : 2025-10-24 14:13

NVD link : CVE-2021-27852

Mitre link : CVE-2021-27852

CVE.ORG link : CVE-2021-27852

JSON object : View

Products Affected

checkbox

  • survey
CWE
CWE-502

Deserialization of Untrusted Data