CVE-2009-3958: Adobe Acrobat

High severity, CVSS 10.0. EPSS: 52.6% chance of exploitation in the next 30 days.

Multiple stack-based buffer overflows in the NOS Microsystems getPlus Helper ActiveX control before 1.6.2.49 in gp.ocx in the Download Manager in Adobe Reader and Acrobat 9.x before 9.3, and 8.x before 8.2 on Windows and Mac OS X, might allow remote attackers to execute arbitrary code via unspecified initialization parameters.

Affected products

• Adobe Acrobat: up to and including 9.2; version 3.0 only; version 3.1 only; version 4.0 only; version 4.0.5 only; version 4.0.5a only; …
• Adobe Acrobat Reader: up to and including 9.2; version 3.0 only; version 3.01 only; version 3.02 only; version 4.0 only; version 4.0.5 only; …

Published 2010-01-13. Last modified 2026-06-16.