CVE-2016-6620

9.8 criticalEPSS 3.2%

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.

Severity

CVSS 3.0

9.8 critical

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS: 3.2% chance of exploitation in the next 30 days; higher than 88% of CVEs (scores of 2026-10-31)
CWE: CWE-502
Published: 2016-12-11
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

phpmyadmin:phpmyadmin

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

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