UpHeron
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Servers and applications

CVE-2016-6620

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
Critical 9.8
Published
11 Dec 2016
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Exploit chance
3.2% in the next 30 daysHigher than 88% of CVEs. EPSS by FIRST, 11 Nov 2026
Weakness
Deserialization of untrusted data (CWE-502)
Attack
Over the network · No login needed · No user action needed
Attacker can
Read data · Change data · Take it down
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Sources
NVD

Affected software

SoftwareAffected versions
phpMyAdminServers and applications · cpe:a:phpmyadmin:phpmyadmin
  • Version 4.6.3
  • Version 4.6.2
  • Version 4.6.1
  • Version 4.6.0
All 60 release lines
  • Version 4.0.0
  • Version 4.0.1
  • Version 4.0.2
  • Version 4.0.3
  • Version 4.0.4
  • Version 4.0.4.1
  • Version 4.0.4.2
  • Version 4.0.5
  • Version 4.0.6
  • Version 4.0.7
  • Version 4.0.8
  • Version 4.0.9
  • Version 4.0.10
  • Version 4.0.10.1
  • Version 4.0.10.2
  • Version 4.0.10.3
  • Version 4.0.10.4
  • Version 4.0.10.5
  • Version 4.0.10.6
  • Version 4.0.10.7
  • Version 4.0.10.8
  • Version 4.0.10.9
  • Version 4.0.10.10
  • Version 4.0.10.11
  • Version 4.0.10.12
  • Version 4.0.10.13
  • Version 4.0.10.14
  • Version 4.0.10.15
  • Version 4.0.10.16
  • Version 4.4.0
  • Version 4.4.1
  • Version 4.4.1.1
  • Version 4.4.2
  • Version 4.4.3
  • Version 4.4.4
  • Version 4.4.5
  • Version 4.4.6
  • Version 4.4.6.1
  • Version 4.4.7
  • Version 4.4.8
  • Version 4.4.9
  • Version 4.4.10
  • Version 4.4.11
  • Version 4.4.12
  • Version 4.4.13
  • Version 4.4.13.1
  • Version 4.4.14
  • Version 4.4.14.1
  • Version 4.4.15
  • Version 4.4.15.1
  • Version 4.4.15.2
  • Version 4.4.15.3
  • Version 4.4.15.4
  • Version 4.4.15.5
  • Version 4.4.15.6
  • Version 4.4.15.7
  • Version 4.6.0
  • Version 4.6.1
  • Version 4.6.2
  • Version 4.6.3

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2016-6620
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2016-6620