Predictive Vulnerability Intelligence.

Product

  • Product
  • Pricing
  • Documentation

Company

  • About
  • Partnerships
  • Blog
  • Support

Legal

  • Terms
  • Privacy
  • Data Licensing

© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2012-6661

19
FAUCET Score

CVE-2012-6661 describes a pseudo-random number generator (PRNG) reseeding vulnerability in Zope before 2.13.19, affecting Plone before 4.2.3 and 4.3 before beta 1. This flaw allows remote attackers to more easily guess PRNG values due to insufficient entropy. The vulnerability has a CVSS score of 5.0, indicating a medium severity, with a low attack complexity and potential for partial confidentiality impact (C:P). There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 4.2.2CPE matchmatch criteria
cpe:2.3:a:plone:plone:*:*:*:*:*:*:*:*
1.0CPE matchmatch criteria
cpe:2.3:a:plone:plone:1.0:*:*:*:*:*:*:*
1.0.1CPE matchmatch criteria
cpe:2.3:a:plone:plone:1.0.1:*:*:*:*:*:*:*
1.0.2CPE matchmatch criteria
cpe:2.3:a:plone:plone:1.0.2:*:*:*:*:*:*:*
1.0.3CPE matchmatch criteria
cpe:2.3:a:plone:plone:1.0.3:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

5.0MEDIUM

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

Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
2.36%
Probability of exploitation in next 30 days
EPSS Percentile
82.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0236 is in the 73rd percentile among its peer group of 23,705 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 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

Patch Available

Vendor Patches (3)

pippatch availablevia ghsa
Product: Zope2Fixed in: 2.13.19
pippatch availablevia ghsa
Product: PloneFixed in: 4.2.3
pippatch availablevia ghsa
Product: PloneFixed in: 4.3b1

Vendor Advisories (2)

pipGHSA-48vv-2pmq-9fvvhigh

Plone and Zope2 do not reseed pseudo-random number generator

Jul 23, 2018
redhatCVE-2012-6661Low

(Plone): Python random generator used instead of system random generator

Nov 6, 2012

References

bugs.launchpad.net / zope2/+bug/1071067
Exploit
github.com / plone/Products.CMFPlone/blob/4.2.3/docs/CHANGES.txt
plone.org / products/plone-hotfix/releases/20121124
plone.org / products/plone/security/advisories/20121106/24
Vendor Advisory
openwall.com / lists/oss-security/2012/11/10/1