UpHeron
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Servers and applications

CVE-2016-6622

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.

Severity
Medium 5.9
Published
11 Dec 2016
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Exploit chance
1.8% in the next 30 daysHigher than 78% of CVEs. EPSS by FIRST, 11 Nov 2026
Weakness
CWE-399
Attack
Over the network · Only under certain conditions · No login needed · No user action needed
Attacker can
Take it down
CVSS vector
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/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-2016-6622
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2016-6622