CVE-2010-2489: Buffer overflow in Ruby 1.9.x before 1.9.1-p429 on Windows might allow local users to gain privileges via a...

Security readout for executives and security teams

This is an old Windows-specific Ruby issue. Ruby 1.9.x before 1.9.1-p429 could mishandle a crafted ARGF.inplace_mode value and overflow a buffer while building backup filenames. The stated impact is possible privilege gain by a local user, not remote internet exploitation. Exposure is most likely on legacy Windows systems running Ruby 1.9.x, especially Ruby versions earlier than 1.9.1-p429. Modern supported Ruby deployments are unlikely to be affected, but bundled or forgotten Windows runtimes should be checked. Treat as legacy-risk cleanup unless Ruby 1.9.x remains on shared or sensitive Windows systems. Prioritize inventory first, then remove or upgrade affected runtimes. Business urgency rises if local users can access systems with elevated Ruby execution paths. Mitigation focus: Upgrade affected Windows Ruby 1.9.x installations to 1.9.1-p429 or later.; Retire unsupported Ruby 1.9.x runtimes where business applications allow.; Check vendor or Ruby project guidance before applying compensating controls..

Prepared

Jun 28, 2026, 02:01 UTC (UTC+00:00)

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