UpHeron
All vulnerabilities

Servers and applications

CVE-2012-5615

Oracle MySQL 5.5.38 and earlier, 5.6.19 and earlier, and MariaDB 5.5.28a, 5.3.11, 5.2.13, 5.1.66, and possibly other versions, generates different error messages with different time delays depending on whether a user name exists, which allows remote attackers to enumerate valid usernames.

Severity
Medium 5.0
Published
3 Dec 2012
Last changed
16 Jun 2026
Added to UpHeron
17 Oct 2026
Exploit chance
15% in the next 30 daysHigher than 96% of CVEs. EPSS by FIRST, 12 Nov 2026
Weakness
Information exposure (CWE-200)
Attack
Over the network · No login needed
Attacker can
Read some data
CVSS vector
AV:N/AC:L/Au:N/C:P/I:N/A:N
Sources
NVD

Affected software

SoftwareAffected versions
MariaDBServers and applications · cpe:a:mariadb:mariadb
  • Version 5.1.66
  • Version 5.2.13
  • Version 5.3.11
  • Version 5.5.28a
MySQLServers and applications · cpe:a:oracle:mysql
  • Version 5.5.19

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2012-5615
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2012-5615