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CVE-2013-6386
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…
Medium6.8EPSS 2.1%
- Published
- Updated
- Reserved
- Assigned by
- redhat
Description
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.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | Medium6.8 | AV:N/AC:M/Au:N/C:P/I:P/A:P |
- EPSS (exploitation in 30 days)
- 2.1% · top 18% of all CVEs (6 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 6.8.
Weakness
Affected products
n/a
- affected n/a
References (5)
- 56148 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- DSA-2828 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
- [oss-security] 20131122 SA-CORE-2013-003 - Drupal core - Multiple vulnerabilities (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- https://drupal.org/SA-CORE-2013-003 (opens in a new tab)x_refsource_CONFIRMx_transferred
- DSA-2804 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2013-6386)Record last updated .