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.
History

Tue, 07 Apr 2026 00:00:00 +0000

Type Values Removed Values Added
First Time appeared R-project
R-project r
Vendors & Products R-project
R-project r

Mon, 06 Apr 2026 20:00:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Sun, 05 Apr 2026 20:45:00 +0000

Type Values Removed Values Added
Description 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.
Title R i386 3.5.0 Local Buffer Overflow SEH
Weaknesses CWE-787
References
Metrics cvssV3_1

{'score': 8.4, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}

cvssV4_0

{'score': 8.6, 'vector': 'CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published: 2026-04-05T20:45:12.540Z

Updated: 2026-04-06T18:30:46.713Z

Reserved: 2026-04-05T12:42:35.055Z

Link: CVE-2019-25656

cve-icon Vulnrichment

Updated: 2026-04-06T18:30:36.150Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-04-05T21:16:42.173

Modified: 2026-04-07T13:20:35.010

Link: CVE-2019-25656

cve-icon Redhat

No data.