CVE-2019-25656: R-Project R i386

High severity, CVSS 8.4. EPSS: 0.2% chance of exploitation in the next 30 days.

R i386 3.5.0 contains a local buffer overflow vulnerability in the GUI Preferences dialog that allows local attackers to trigger a structured exception handler (SEH) overwrite by supplying malicious input. Attackers can craft a payload string in the 'Language for menus and messages' field to overwrite SEH records and achieve code execution with calculator or arbitrary shellcode.

Affected products

• R-Project R i386: version 3.5.0 only

Published 2026-04-05. Last modified 2026-07-24.