CVE-2010-2489: Ruby-Lang Ruby

High severity, CVSS 7.2. EPSS: 0.4% chance of exploitation in the next 30 days.

Buffer overflow in Ruby 1.9.x before 1.9.1-p429 on Windows might allow local users to gain privileges via a crafted ARGF.inplace_mode value that is not properly handled when constructing the filenames of the backup files.

Affected products

• Ruby-Lang Ruby: version 1.9.0-0 only; version 1.9.0-1 only; version 1.9.0-2 only; version 1.9.0-20060415 only; version 1.9.0-20070709 only; version 1.9.1 only

Published 2010-07-12. Last modified 2026-06-16.