What is CVE-2012-3158?

CVE-2012-3158 is a vulnerability in Mariadb. Published 2012-10-16.

Is CVE-2012-3158 known to be exploited?

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

Vulnerability in Mariadb

CVE-2012-3158

Unspecified vulnerability in the MySQL Server component in Oracle MySQL 5.1.64 and earlier, and 5.5.26 and earlier, allows remote attackers to affect confidentiality, integrity, and availability via unknown vectors related to Protocol.

Published 2012-10-16 · last modified 2026-06-16.

CVSS v2 metric

CVSS v2 base score 7.5 (High). Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P. This CVE predates CVSS v3 and has no v3 score from NVD.

EPSS exploit prediction

EPSS: 0.045 (91.2th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 91st percentile — 91.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.045 · newest: 0.045 · change: 0.000

Affected products

Mariadb
Oracle MySQL
Canonical Ubuntu Linux — versions 10.04, 11.10, 12.04
Debian Linux — versions 6.0, 7.0
Red Hat Enterprise Linux Desktop — versions 6.0
Red Hat Enterprise Linux Eus — versions 6.3
Red Hat Enterprise Linux Server — versions 6.0
Red Hat Enterprise Linux Workstation — versions 6.0

Public proof-of-concept exploits

References

secunia.com/advisories/51177 (Not Applicable, third-party-advisory)
rhn.redhat.com/errata/RHSA-2012-1462.html (vendor-advisory, Third Party Advisory)
www.mandriva.com/security/advisories (vendor-advisory, Broken Link)
secunia.com/advisories/53372 (Not Applicable, third-party-advisory)
security.gentoo.org/glsa/glsa-201308-06.xml (vendor-advisory, Third Party Advisory)
www.debian.org/security/2012/dsa-2581 (vendor-advisory, Third Party Advisory)
www.oracle.com/technetwork/topics/security/cpuoct2012-1515893.html (Patch, Vendor Advisory)
secunia.com/advisories/51309 (Not Applicable, third-party-advisory)
exchange.xforce.ibmcloud.com/vulnerabilities/79382 (VDB Entry, Third Party Advisory, vdb-entry)
www.ubuntu.com/usn/USN-1621-1 (vendor-advisory, Third Party Advisory)

Frequently asked questions

What is CVE-2012-3158?: CVE-2012-3158 is a vulnerability in Mariadb. Published 2012-10-16.
Is CVE-2012-3158 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.