CVE-2021-21956

7.8 highEPSS 1.4%

High (7.8) in cloudlinux imunify360. EPSS 1.4% chance of exploitation in the next 30 days.

A php unserialize vulnerability exists in the Ai-Bolit functionality of CloudLinux Inc Imunify360 5.10.2. A specially-crafted malformed file can lead to potential arbitrary command execution. An attacker can provide a malicious file to trigger this vulnerability.

Severity

CVSS 3.1

7.8 high

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

EPSS: 1.4% chance of exploitation in the next 30 days; higher than 72% of CVEs (scores of 2026-10-31)
CWE: CWE-502
Published: 2022-04-14
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

cloudlinux:imunify360

References

https://talosintelligence.com/vulnerability_reports/TALOS-2021-1383
https://talosintelligence.com/vulnerability_reports/TALOS-2021-1383

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