What’s Vulnerable › Vulnerabilities

CVE-2012-6661

• Severity: medium (CVSS 5.0 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.4% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2014-11-03 · updated 2026-06-16
• Weakness: CWE-310

Description

Zope before 2.13.19, as used in Plone before 4.2.3 and 4.3 before beta 1, does not reseed the pseudo-random number generator (PRNG), which makes it easier for remote attackers to guess the value via unspecified vectors. NOTE: this issue was SPLIT from CVE-2012-5508 due to different vulnerability types (ADT2).

Affected products

• Plone CMS: through 4.2.2; 1.0, 1.0.1, 1.0.2, 1.0.3, 1.0.4, 1.0.5 (+57)
• zopefoundation Zope: through 2.13.18

References

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

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