CVE-2015-7551: The Fiddle::Handle implementation in ext/fiddle/handle.c in Ruby before 2.0.0-p648, 2.1 before 2.1.8, and 2...

Security readout for executives and security teams

CVE-2015-7551 is a Ruby runtime flaw in Fiddle/DL handling of tainted strings. In affected Ruby versions, specially crafted string handling could let a context-dependent attacker crash an application or execute code. It matters mainly where old Ruby runtimes or vendor-packaged Ruby remain in use. Exposure is most likely in legacy systems running old Ruby 2.0, 2.1, or 2.2 builds, including OS-vendor packaged Ruby from the 2015-2018 era. Modern supported Ruby deployments are unlikely to be affected if vendor security updates were applied. Prioritize remediation where legacy Ruby supports production, automation, or security-sensitive workflows. The age of the issue lowers urgency for patched estates, but arbitrary code execution potential makes unsupported Ruby a governance and resilience concern. Mitigation focus: Upgrade Ruby to 2.0.0-p648, 2.1.8, 2.2.4, or later where applicable.; Apply Apple OS X 10.11.4 or relevant vendor security updates for packaged Ruby.; Check Linux distribution advisories for backported Ruby fixes carrying this CVE..

Prepared

Jun 13, 2026, 21:06 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.