CVE-2018-25258

HIGH 8.4

RGui 3.5.0 Local Buffer Overflow SEH DEP Bypass

CVSS Score

8.4

EPSS Score

0.0%

EPSS Percentile

2th

RGui 3.5.0 contains a local buffer overflow vulnerability in the GUI preferences dialog that allows attackers to bypass DEP protections through structured exception handling exploitation. Attackers can craft malicious input in the Language for menus and messages field to trigger a stack-based buffer overflow, execute a ROP chain for VirtualAlloc allocation, and achieve arbitrary code execution.

CWE	CWE-434
Vendor	r-project
Product	rgui
Published	Apr 12, 2026
Last Updated	Apr 13, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector

Local

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Affected Versions

R-Project / RGui

3.5.0

References

NVD ↗ CVE.org ↗ EPSS Data ↗

exploit-db.com: https://www.exploit-db.com/exploits/46107 r-project.org: https://www.r-project.org/ cran.r-project.org: https://cran.r-project.org/bin/windows/base/old/3.5.0/R-3.5.0-win.exe vulncheck.com: https://www.vulncheck.com/advisories/rgui-local-buffer-overflow-seh-dep-bypass

Credits

bzyo