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CVE-2013-6386

MEDIUM · CVSS 6.8EPSS 2.1%EU EUVD

Drupal 6.x before 6.29 and 7.x before 7.24 uses the PHP mt_rand function to generate random numbers, which uses predictable seeds and allows remote attackers to predict security strings and bypass intended restrictions via a brute force attack.

Key facts

CVSS score
6.8 (v2.0)
Severity
MEDIUM
CVSS vector
AV:N/AC:M/Au:N/C:P/I:P/A:P
Weakness (CWE)
CWE-310
EPSS score
2.1% (82th percentile)
In CISA KEV
No
In EU EUVD
Yes (EUVD-2013-6211)
Published
December 7, 2013
NVD last modified
June 17, 2026
Status
Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2013-6211 in the EU Vulnerability Database. Last updated in EUVD on August 6, 2024.

View on the EU Vulnerability Database

Affected products

  • drupal / drupal
  • drupal / drupal
  • drupal / drupal
  • drupal / drupal
  • drupal / drupal
  • drupal / drupal
  • drupal / drupal
  • drupal / drupal
  • drupal / drupal
  • drupal / drupal
  • drupal / drupal
  • drupal / drupal
  • drupal / drupal
  • drupal / drupal
  • drupal / drupal
  • drupal / drupal
  • drupal / drupal
  • drupal / drupal
  • drupal / drupal
  • drupal / drupal
  • drupal / drupal
  • drupal / drupal
  • drupal / drupal
  • drupal / drupal
  • drupal / drupal
  • drupal / drupal
  • drupal / drupal
  • drupal / drupal
  • drupal / drupal
  • drupal / drupal
  • drupal / drupal
  • drupal / drupal
  • drupal / drupal
  • drupal / drupal
  • drupal / drupal
  • drupal / drupal
  • drupal / drupal
  • drupal / drupal
  • drupal / drupal
  • drupal / drupal
  • drupal / drupal
  • drupal / drupal
  • drupal / drupal
  • drupal / drupal
  • drupal / drupal
  • drupal / drupal
  • drupal / drupal
  • drupal / drupal
  • drupal / drupal
  • drupal / drupal

and 28 more…

References

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

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