What is CVE-2019-20494?

CVE-2019-20494 is a low-severity vulnerability in Cpanel, classified under Use of Insufficiently Random Values. CVSS score: 3.3/10. Published 2020-03-17.

How severe is CVE-2019-20494?

Low severity. CVSS v3 base score is 3.3 out of 10.

Vulnerability in Cpanel

CVE-2019-20494

In cPanel before 82.0.18, Cpanel::Rand::Get can produce a predictable series of numbers (SEC-525).

Published 2020-03-17 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 3.3 (Low). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N.

EPSS exploit prediction

EPSS: 0.003 (20.4th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 20th percentile — 20.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000

Affected products

Cpanel

Weakness classification (CWE)

CWE-330 — Use of Insufficiently Random Values

References

documentation.cpanel.net/display/CL/82+Change+Log (Vendor Advisory)

Frequently asked questions

What is CVE-2019-20494?: CVE-2019-20494 is a low-severity vulnerability in Cpanel, classified under Use of Insufficiently Random Values. CVSS score: 3.3/10. Published 2020-03-17.
How severe is CVE-2019-20494?: Low severity. CVSS v3 base score is 3.3 out of 10.