← Back to CVE List
Vulnerability Intelligence Report
Checkbox Survey Deserialization of Untrusted Data Vulnerability

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.

CISA KEV SSVC: Active Exploitation Automatable
CVSS Base Score
9.8
CRITICAL
Exploitability:3.9
Impact Score:5.9
EPSS Probability:31.95%
Executive Threat Verdict
Evaluating...
Evaluating Threat Landscape...
Assessing known weaponization, exploitation telemetry, and federal advisories.
Attack Surface
—
Authentication
—
Weaponization
—
SSVC Action
—

Weaknesses (CWE)

CWE-502 ↗CWE-502 Deserialization of Untrusted Data

Affected Products & Versions

Vendor Product Affected Versions
Checkbox Survey unspecified < 7 (affected)

References & Technical Advisories

No reference links found.

Threat Intelligence Signals

CISA KEV
ACTIVE IN CATALOG
EPSS Score
31.946%

Identity & Timeline

StatusPUBLISHED
Assigning AuthorityCERT/CC · CERT · USA
Reserved2021-03-01T00:00:00
Published2021-05-27T20:55:11
Last Updated2025-10-21T23:25:44

LINK COPIED TO CLIPBOARD