CVE-2021-21956

HIGH

CloudLinux Imunify360 5.10.2 - Remote Code Execution via Ai-Bolit PHP Unserialize

Title source: llm

Description

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.

References (1)

Core 1

Core References

Exploit, Third Party Advisory x_refsource_misc

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

Scores

CVSS v3 7.8

EPSS 0.0127

EPSS Percentile 66.0%

Attack Vector LOCAL

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

CISA SSVC

Vulnrichment

Exploitation poc

Automatable no

Technical Impact total

Details

CWE

CWE-502

Status published

Products (3)

cloudlinux/imunify360 5.8

cloudlinux/imunify360 5.9

cloudlinux/imunify360 5.10.2

Published Apr 14, 2022

Tracked Since Feb 18, 2026