CVE-2016-6620

Severity: critical (CVSS 9.8 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 3.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2016-12-11 · updated 2026-06-17
Weakness: CWE-502

Description

An issue was discovered in phpMyAdmin. Some data is passed to the PHP unserialize() function without verification that it's valid serialized data. The unserialization can result in code execution because of the interaction with object instantiation and autoloading. 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: 4.6.0, 4.6.1, 4.6.2, 4.6.3, 4.0.0, 4.0.1 (+54)

References

http://www.securityfocus.com/bid/95055
https://lists.debian.org/debian-lts-announce/2018/07/msg00006.html
https://security.gentoo.org/glsa/201701-32
https://www.phpmyadmin.net/security/PMASA-2016-43
http://www.securityfocus.com/bid/95055
https://lists.debian.org/debian-lts-announce/2018/07/msg00006.html
https://security.gentoo.org/glsa/201701-32
https://www.phpmyadmin.net/security/PMASA-2016-43

Get alerted when CVE-2016-6620 or the next vulnerability affects your stack