VULNERABILITY INTELLIGENCE

CVE-2011-2686

CVSS score5 MEDIUM
EPSS probability2.58%
CISA KEVNot currently listed
Published2011-08-05
Last modified2026-06-16
CVSS vectorAV:N/AC:L/Au:N/C:P/I:N/A:N

Description

Ruby before 1.8.7-p352 does not reset the random seed upon forking, which makes it easier for context-dependent attackers to predict the values of random numbers by leveraging knowledge of the number sequence obtained in a different child process, a related issue to CVE-2003-0900. NOTE: this issue exists because of a regression during Ruby 1.8.6 development.

Primary references