CVE-2021-27852

Vulnerability details

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

Added to CISA KEV: 2022-04-11

Ransomware campaign use: Unknown

CISA due date: 2022-05-02

Defensive guidance from CISA

Versions 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.

This is the source's required-action field, not an independently validated patch procedure. Refer to the vendor for exact affected versions and fixes.