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Servers and applications

CVE-2016-3171

Drupal 6.x before 6.38, when used with PHP before 5.4.45, 5.5.x before 5.5.29, or 5.6.x before 5.6.13, might allow remote attackers to execute arbitrary code via vectors related to session data truncation.

Severity
High 8.1
Published
12 Apr 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
CWE-19
Attack
Over the network · Only under certain conditions · No login needed · No user action needed
Attacker can
Read data · Change data · Take it down
CVSS vector
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Sources
NVD

Affected software

SoftwareAffected versions
DrupalServers and applications · cpe:a:drupal:drupal
  • Version 6.37
  • Version 6.36
  • Version 6.35
  • Version 6.34
All 47 release lines
  • Version 6.0-dev
  • Version 6.0-beta1
  • Version 6.0-beta2
  • Version 6.0-beta3
  • Version 6.0-beta4
  • Version 6.0-rc1
  • Version 6.0-rc2
  • Version 6.0-rc3
  • Version 6.0-rc4
  • Version 6.0
  • Version 6.1
  • Version 6.2
  • Version 6.3
  • Version 6.4
  • Version 6.5
  • Version 6.6
  • Version 6.7
  • Version 6.8
  • Version 6.9
  • Version 6.10
  • Version 6.11
  • Version 6.12
  • Version 6.13
  • Version 6.14
  • Version 6.15
  • Version 6.16
  • Version 6.17
  • Version 6.18
  • Version 6.19
  • Version 6.20
  • Version 6.21
  • Version 6.22
  • Version 6.23
  • Version 6.24
  • Version 6.25
  • Version 6.26
  • Version 6.27
  • Version 6.28
  • Version 6.29
  • Version 6.30
  • Version 6.31
  • Version 6.32
  • Version 6.33
  • Version 6.34
  • Version 6.35
  • Version 6.36
  • Version 6.37

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2016-3171
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2016-3171