What’s Vulnerable › Vulnerabilities

CVE-2018-25258: RGui 3.5.0 Local Buffer Overflow SEH DEP Bypass

• Severity: high (CVSS 8.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-04-12 · updated 2026-06-17
• Weakness: CWE-434

Description

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.

Affected products

• R-Project RGui: 3.5.0

References

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

Get alerted when CVE-2018-25258 or the next vulnerability affects your stack