CVE-2016-6622: phpMyAdmin

Medium severity, CVSS 5.9. EPSS: 1.8% chance of exploitation in the next 30 days.

An issue was discovered in phpMyAdmin. An unauthenticated user is able to execute a denial-of-service (DoS) attack by forcing persistent connections when phpMyAdmin is running with $cfg['AllowArbitraryServer']=true. All 4.6.x versions (prior to 4.6.4), 4.4.x versions (prior to 4.4.15.8), and 4.0.x versions (prior to 4.0.10.17) are affected.

Affected products

• phpMyAdmin phpMyAdmin: version 4.0.0 only; version 4.0.1 only; version 4.0.2 only; version 4.0.3 only; version 4.0.4 only; version 4.0.4.1 only; …

Published 2016-12-11. Last modified 2026-06-17.