CVE-2021-27852
CVSS v3
9.8
CRITICAL
EPSS Score
25.5 %
exploit probability
CISA KEV
Yes
known exploited
Exploitation
—
SSVC status
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.
CISA Known Exploited Vulnerability
- Date Added
- 2022-04-11
- Patch Due Date
- 2022-05-02
- Ransomware Use
- Unknown
Technical details
- Published
- 2021-05-27
Frequently asked questions
What is 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.
Is CVE-2021-27852 actively exploited?
Yes. CVE-2021-27852 is on the CISA Known Exploited Vulnerabilities (KEV) catalog, meaning it has been confirmed as actively exploited in the wild. CISA requires federal agencies to patch by 2022-05-02.
What is the CVSS score for CVE-2021-27852?
CVE-2021-27852 has a CVSS v3 base score of 9.8 (CRITICAL severity).
Is CVE-2021-27852 affecting your environment?
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