PT-2026-30465 · R · R I386

Published 2026-04-05 · Updated 2026-04-05 · CVE-2019-25656

Mitre

CVSS v3.1

8.4

High

AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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.

Exploit

Fix

Memory Corruption

Weakness Enumeration

CWE-787

Related Identifiers

CVE-2019-25656

Affected Products

R I386

References · 5

• 🔥 https://exploit-db.com/exploits/46288 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2019-25656 · Security Note
• https://cran.r-project.org/bin/windows/base/old/3.5.0/R-3.5.0-win.exe · Note
• https://vulncheck.com/advisories/r-i386-local-buffer-overflow-seh · Note
• https://r-project.org · Note