What is CVE-2015-4866?

CVE-2015-4866 is a vulnerability in Mariadb. Published 2015-10-21.

Is CVE-2015-4866 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in Mariadb

CVE-2015-4866

Unspecified vulnerability in Oracle MySQL Server 5.6.23 and earlier allows remote authenticated users to affect availability via unknown vectors related to Server : InnoDB.

Published 2015-10-21 · last modified 2026-06-17.

CVSS v2 metric

CVSS v2 base score 4.0 (Medium). Vector: AV:N/AC:L/Au:S/C:N/I:N/A:P. This CVE predates CVSS v3 and has no v3 score from NVD.

EPSS exploit prediction

EPSS: 0.024 (83.3th percentile), scored 2026-10-02.

Low probability of exploitation in the next 30 days, but still tracked. 83rd percentile — 83.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.024 · newest: 0.024 · change: 0.000

Affected products

Mariadb
Oracle MySQL
Canonical Ubuntu Linux — versions 12.04, 14.04, 15.04

Public proof-of-concept exploits

Live-Hack-CVE/CVE-2015-4866

References

www.securitytracker.com/id/1033894 (VDB Entry, Third Party Advisory, vdb-entry, Broken Link)
www.securityfocus.com/bid/77132 (VDB Entry, Third Party Advisory, vdb-entry)
www.ubuntu.com/usn/USN-2781-1 (vendor-advisory, Third Party Advisory)
www.oracle.com/technetwork/topics/security/cpuoct2015-2367953.html (Patch, Vendor Advisory)

Frequently asked questions

What is CVE-2015-4866?: CVE-2015-4866 is a vulnerability in Mariadb. Published 2015-10-21.
Is CVE-2015-4866 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.