What is CVE-2019-12301?

CVE-2019-12301 is a critical-severity vulnerability in Percona Server. CVSS score: 9.8/10. Published 2019-05-23.

How severe is CVE-2019-12301?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Vulnerability in Percona Server

CVE-2019-12301

The Percona Server 5.6.44-85.0-1 packages for Debian and Ubuntu suffered an issue where the server would reset the root password to a blank value upon an upgrade. This was fixed in 5.6.44-85.0-2.

Published 2019-05-23 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.020 (79.6th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 80th percentile — 79.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.020 · newest: 0.020 · change: 0.000

Affected products

Percona Server — versions 5.6.44-85.0-1

References

www.percona.com/blog/2019/05/17/percona-server-for-mysql-5-6-44-85-0-is-now-ava… (Vendor Advisory)
jira.percona.com/browse/PS-5640 (Issue Tracking, Vendor Advisory)

Frequently asked questions

What is CVE-2019-12301?: CVE-2019-12301 is a critical-severity vulnerability in Percona Server. CVSS score: 9.8/10. Published 2019-05-23.
How severe is CVE-2019-12301?: Critical severity. CVSS v3 base score is 9.8 out of 10.