CVE-2021-21956

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.

CVSS v3.1

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

CVSS v3.0

8.2 HIGHCVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:N

CVSS v2.0

9.3 HIGHAV:N/AC:M/Au:N/C:C/I:C/A:C

EPSS

1.30% chance of exploitation in the next 30 days, 69th percentile

Published

2022-04-14

Updated

2025-04-15

Proof-of-concept exploits (1)

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

References

• CVE Record
• NVD entry

Related

• CVE-2021-21955
• CVE-2021-21957
• CVE-2021-21954
• CVE-2021-21958
• CVE-2021-21953
• CVE-2021-21959