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Fencer Intel
medium 4.0

CVE-2012-5627 json

Oracle MySQL and MariaDB 5.5.x before 5.5.29, 5.3.x before 5.3.12, and 5.2.x before 5.2.14 does not modify the salt during multiple executi…

published 2013-10-01 13 y ago modified 2026-06-16 4 mo ago also EUVD-2012-5512

cvss
4.0
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
11.4%
EPSS 11.4% chance of exploitation in 30 days, percentile 96%
public exploits
1
Exploit-DB

Summary

Oracle MySQL and MariaDB 5.5.x before 5.5.29, 5.3.x before 5.3.12, and 5.2.x before 5.2.14 does not modify the salt during multiple executions of the change_user command within the same connection which makes it easier for remote authenticated users to conduct brute force password guessing attacks.

Patch / fix

  • oracle mysql 5.5.29
  • mariadb mariadb 5.2.14, 5.3.12, 5.5.29
  • mariadb104 SLES for SAP 12 SP5, SLES 12 SP5, SLE Software Development Kit 12 SP5 10.4.30-8.5.46
  • lz4 SLES for SAP 12 SP5, SLES 12 SP5, SLE Software Development Kit 12 SP5 1.8.0-3.5.2
  • python-mysqlclient SLES for SAP 12 SP5, SLES 12 SP5, SLE Software Development Kit 12 SP5 1.3.14-8.9.2
  • mariadb-connector-c SLES for SAP 12 SP5, SLES 12 SP5, SLE Software Development Kit 12 SP5 3.1.22-2.35.1
  • mariadb104 SLES for SAP 15 SP1, SLES 15 SP1-LTSS, SLE High Performance Computing 15 SP1-LTSS 10.4.30-150100.3.5.10
  • python-mysqlclient SLES for SAP 15 SP1, SLES 15 SP1-LTSS, SLE High Performance Computing 15 SP1-LTSS 1.4.6-150100.3.3.7

suse advisories SUSE-RU-2023:4991-1SUSE-RU-2023:3956-1

  • mariadb openSUSE Tumbleweed 10.0.22-3.8

opensuse advisories openSUSE-SU-2024:10153-1

  • mysql CBL-Mariner 2.0 8.0.24-1

azure linux advisories AZL-6692

Azure Linux vulnerability data, Copyright (c) Microsoft Corporation, from https://github.com/microsoft/AzureLinuxVulnerabilityData via OSV, under the MIT licence; changed: normalised to fixed package versions per release. MIT

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2012-5627 updated cvss 2.6

mysql: efficient password guessing attack using change_user()

  • Red Hat Enterprise Linux 5 mysql Red Hat Enterprise Linux 6 mysql, mysql-libs, mysql-test, mysql-bench, mysql-server, mysql-embedded
    affected: no fix planned “Will not fix”

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Timeline

  1. First public exploit (EDB-38109)
  2. Published

Exploit prediction

11.41% chance of exploitation in the next 30 days, higher than 96% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • EDB-38109 Oracle MySQL / MariaDB - Insecure Salt Generation Security Bypass remote, 2012-12-06
  • seclists.org http://seclists.org/fulldisclosure/2012/Dec/58 referenced PoC, tagged "exploit" by a source, unverified
  • seclists.org http://seclists.org/fulldisclosure/2012/Dec/83 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 2.0 4.0 AV:N/AC:L/Au:S/C:P/I:N/A:N

Classification

Weakness
  • CWE-522 Insufficiently Protected Credentials
Technology feeds

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.