Local Buffer Overflow in RGui 3.5.0 by R Project
CVE-2018-25258

8.6HIGH

Key Information:

Vendor

R-project

Status
Rgui
Vendor
CVE Published:
12 April 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2018-25258?

RGui version 3.5.0 is vulnerable to a local buffer overflow, specifically in its GUI preferences dialog. This vulnerability allows attackers to exploit structured exception handling, bypassing Data Execution Prevention (DEP) protections. By crafting malicious input within the 'Language for menus and messages' field, a stack-based buffer overflow can be triggered. This leads to the execution of a Return-Oriented Programming (ROP) chain that enables arbitrary code execution, posing significant security risks to affected systems.

Affected Version(s)

RGui 3.5.0

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2018-25258 - Proof of Concept

References

https://www.exploit-db.com/exploits/46107
exploit
https://www.r-project.org/
product
https://cran.r-project.org/bin/windows/base/old/3.5.0/R-3...
product

CVSS V4

Score:
8.6
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

bzyo
.