What is CVE-2016-10773?

CVE-2016-10773 is a high-severity vulnerability in Cpanel, classified under Use of Externally-Controlled Format String. CVSS score: 8.8/10. Published 2019-08-05.

How severe is CVE-2016-10773?

High severity. CVSS v3 base score is 8.8 out of 10.

Vulnerability in Cpanel

CVE-2016-10773

cPanel before 60.0.25 allows format-string injection in exception-message handling (SEC-171).

Published 2019-08-05 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.011 (63.0th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 63rd percentile — 63.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.011 · newest: 0.011 · change: 0.000

Affected products

Cpanel

Weakness classification (CWE)

CWE-134 — Use of Externally-Controlled Format String

References

documentation.cpanel.net/display/CL/60+Change+Log (Release Notes, Vendor Advisory)

Frequently asked questions

What is CVE-2016-10773?: CVE-2016-10773 is a high-severity vulnerability in Cpanel, classified under Use of Externally-Controlled Format String. CVSS score: 8.8/10. Published 2019-08-05.
How severe is CVE-2016-10773?: High severity. CVSS v3 base score is 8.8 out of 10.