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CVE-2013-6386

20
FAUCET Score

CVE-2013-6386 is a vulnerability affecting Drupal 6.x before 6.29 and 7.x before 7.24, where the PHP mt_rand function's predictable random number generation allows remote attackers to bypass security restrictions. With a CVSS score of 6.8, this medium-complexity network-based attack could lead to partial confidentiality, integrity, and availability impacts. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this decade-old vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
7.0CPE matchmatch criteria
cpe:2.3:a:drupal:drupal:7.0:*:*:*:*:*:*:*
7.0CPE matchmatch criteria
cpe:2.3:a:drupal:drupal:7.0:alpha1:*:*:*:*:*:*
7.0CPE matchmatch criteria
cpe:2.3:a:drupal:drupal:7.0:alpha2:*:*:*:*:*:*
7.0CPE matchmatch criteria
cpe:2.3:a:drupal:drupal:7.0:alpha3:*:*:*:*:*:*
7.0CPE matchmatch criteria
cpe:2.3:a:drupal:drupal:7.0:alpha4:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

6.8MEDIUM

AV:N/AC:M/Au:N/C:P/I:P/A:P

Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
8.6
Impact Score
6.4
CvssVersion
2.0

Exploit Intelligence

EPSS Score
2.08%
Probability of exploitation in next 30 days
EPSS Percentile
79.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0208 is in the 66th percentile among its peer group of 19,958 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

drupal.org / SA-CORE-2013-003
PatchVendor Advisory
secunia.com / advisories/56148
debian.org / security/2013/dsa-2804
debian.org / security/2013/dsa-2828
openwall.com / lists/oss-security/2013/11/22/4