CVE-2021-27852 KEV
9.8
CRITICAL · CVSS 3.1 · EPSS 30.3% (pctl 98)
Patch first
On CISA KEV — known exploited in the wild, due 2022-05-02.
Description
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.
Scoring
| CVSS | 9.8 (CRITICAL, v3.1) |
|---|---|
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| EPSS | 30.26% — more likely to be exploited than 98% of all CVEs |
| Weakness | CWE-502 |
| On CISA KEV | yes — remediate by 2022-05-02 |
| Public exploit | none known |
| Published | 2021-05-27 |
| Last modified | 2026-06-17 |
CISA KEV
| Name | Checkbox Survey Deserialization of Untrusted Data Vulnerability |
|---|---|
| Added | 2022-04-11 |
| Due | 2022-05-02 |
| Vendor / product | Checkbox / Checkbox Survey |
| Ransomware use | none reported |
Affected (1)
| Vendor | Product |
|---|---|
| checkbox | survey |
References
→ the Explorer · watch your stack · NVD