What is CVE-2021-38588?

CVE-2021-38588 is a high-severity vulnerability in Cpanel, classified under Download of Code Without Integrity Check. CVSS score: 8.1/10. Published 2021-08-11.

How severe is CVE-2021-38588?

High severity. CVSS v3 base score is 8.1 out of 10.

Vulnerability in Cpanel

CVE-2021-38588

In cPanel before 96.0.13, fix_cpanel_perl lacks verification of the integrity of downloads (SEC-587).

Published 2021-08-11 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.004 (36.0th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 36th percentile — 36.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000

Affected products

Cpanel

Weakness classification (CWE)

CWE-494 — Download of Code Without Integrity Check

References

docs.cpanel.net/changelogs/96-change-log/ (Release Notes, Vendor Advisory)

Frequently asked questions

What is CVE-2021-38588?: CVE-2021-38588 is a high-severity vulnerability in Cpanel, classified under Download of Code Without Integrity Check. CVSS score: 8.1/10. Published 2021-08-11.
How severe is CVE-2021-38588?: High severity. CVSS v3 base score is 8.1 out of 10.