CVE-2021-27852

high-risk
Published 2021-05-27

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.

Do I need to act?

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25.5% chance of exploitation in next 30 days
EPSS score — higher than 74% of all CVEs
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CISA KEV: actively exploited in the wild
On the Known Exploited Vulnerabilities catalog — federal agencies must patch
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
9
CVSS 9.8/10 Critical
NETWORK / LOW complexity

Affected Products (1)

Affected Vendors

Checkbox

References (3)

Third Party Advisory https://www.kb.cert.org/vuls/id/706695
Third Party Advisory https://www.kb.cert.org/vuls/id/706695
US Government Resource https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-...
59
/ 100
high-risk
Severity 32/34 · Critical
Exploitability 22/34 · High
Exposure 5/34 · Minimal