Risk Letters

Exploited vulnerability

CVE-2021-27852

TLP:CLEAR

Checkbox Survey Deserialization of Untrusted Data Vulnerability

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

Facts

  • Vendor: Checkbox
  • Product: Checkbox Survey
  • CVSS: 9.8
  • EPSS (probability of exploitation within 30 days): 30.3 %
  • On CISA's Known Exploited Vulnerabilities list since: 11 April 2022
  • First known exploitation: 11 April 2022
  • CISA's deadline for US federal agencies: 2 May 2022
  • Weakness: CWE-502
  • First seen by Risk Letters: 11 April 2022

Members see which Nordic sectors the flaw hits, and what to do about it.

Get the full brief

Data: NVD (public domain), CISA KEV, FIRST EPSS, MITRE ATT&CK, AlienVault OTX. NVD