All vulnerabilities
CVE-2021-27852

Checkbox Survey Deserialization of Untrusted Data Vulnerability

Checkbox Checkbox Survey
Open in ThreatlineRecord JSON
CVSS
9.8Critical
ExploitationExploited in the wildAdded to KEV 11 Apr 2022CISA KEV
Exploit odds (EPSS)30.3%Chance of exploitation activity in the next 30 days, higher than 98% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed in7Fixed versionCVE List
Federal deadline2 May 2022Remediation due date for US federal agenciesCISA KEV
CISA required actionVersions 6 and earlier for this product are end-of-life and must be removed from agency networks. Versions 7 and later are not considered vulnerable. CISA KEV

What fixes it

A fixed version on one release line is not the upgrade target for every line. Check your exact version and any vendor backports.

Timeline

  1. 27 May 2021, 20:55 UTCPublishedCVE List
  2. 11 Apr 2022Added to CISA KEVCISA KEV

Description

Deserialization of Untrusted Data vulnerability in CheckboxWeb.dll of Checkbox Survey allows an unauthenticated remote attacker to execute arbitrary code.

Text from CVE List

Affected versions 1

  • Surveyaffected: unspecified before 7CVE List

References 3