What is CVE-2017-3257?

CVE-2017-3257 is a medium-severity vulnerability in Mariadb, classified under Improper Privilege Management. CVSS score: 6.5/10. Published 2017-01-27.

How severe is CVE-2017-3257?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Privilege escalation in Mariadb

CVE-2017-3257

Vulnerability in the MySQL Server component of Oracle MySQL (subcomponent: Server: InnoDB). Supported versions that are affected are 5.6.34 and earlier5.7.16 and earlier. Easily exploitable vulnerability allows low privileged attacker with network access via multiple protocols to compromise MySQL Server. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Server. CVSS v3.0 Base Score 6.5 (Availability impacts).

Vulnerability class: Privilege Escalation

Published 2017-01-27 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.026 (84.6th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 85th percentile — 84.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.026 · newest: 0.026 · change: 0.000

Affected products

Mariadb
Oracle MySQL
Oracle MySQL Server — versions 5.6.34 and earlier, 5.7.16 and earlier
Debian Linux — versions 8.0

Weakness classification (CWE)

CWE-269 — Improper Privilege Management

References

access.redhat.com/errata/RHSA-2017:2787 (vendor-advisory, Third Party Advisory)
security.gentoo.org/glsa/201702-17 (vendor-advisory, Third Party Advisory)
access.redhat.com/errata/RHSA-2018:0574 (vendor-advisory, Third Party Advisory)
security.gentoo.org/glsa/201702-18 (vendor-advisory, Third Party Advisory)
www.securitytracker.com/id/1037640 (VDB Entry, Third Party Advisory, vdb-entry, Broken Link)
access.redhat.com/errata/RHSA-2018:0279 (vendor-advisory, Third Party Advisory)
www.securityfocus.com/bid/95589 (VDB Entry, Third Party Advisory, vdb-entry)
access.redhat.com/errata/RHSA-2017:2886 (vendor-advisory, Third Party Advisory)
www.oracle.com/technetwork/security-advisory/cpujan2017-2881727.html (Patch, Vendor Advisory)
www.debian.org/security/2017/dsa-3770 (vendor-advisory, Third Party Advisory)

Frequently asked questions

What is CVE-2017-3257?: CVE-2017-3257 is a medium-severity vulnerability in Mariadb, classified under Improper Privilege Management. CVSS score: 6.5/10. Published 2017-01-27.
How severe is CVE-2017-3257?: Medium severity. CVSS v3 base score is 6.5 out of 10.