CVE-2012-5615 Information disclosure in n/a
Remote attackers can enumerate valid usernames by analyzing timing differences in error messages, exposing user account existence.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2012-5615?
CVE-2012-5615 is a medium-severity vulnerability in Mariadb Mariadb, published on 3 Dec 2012. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
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.
Weakness: CWE-200
Which versions are affected by CVE-2012-5615?
It affects 2 products.
Products include Mariadb Mariadb, Oracle Mysql.
How do I fix CVE-2012-5615?
Upgrade to a fixed version.
Is CVE-2012-5615 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2012-5615 exists.
Public exploit code: 2 Exploit-DB entries.
Other vulnerabilities in Mariadb Mariadb
- CVE-2026-49261 MariaDB server has unsafe parameter handling in `wsrep_notify_cmd`
- CVE-2026-85746 MariaDB: Out-of-bound buffer write on in `ST_AsText` of nested GeometryCollections
- CVE-2026-85748 MariaDB: Use-after-free with a large number of SYS_REFCURSOR's
- CVE-2026-92262 MariaDB: Numerous issues caused by historical #mysql50# tablename encoding bypass.
- CVE-2023-26785 Code injection in n/a
Sources
Also known as GHSA-7ccw-fmfw-7xm6, UBUNTU-CVE-2012-5615.