High severity8.4NVD Advisory· Published Apr 5, 2026· Updated Apr 16, 2026

CVE-2019-25656

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.

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References

cran.r-project.org/bin/windows/base/old/3.5.0/R-3.5.0-win.exenvd
www.exploit-db.com/exploits/46288nvd
www.r-project.orgnvd
www.vulncheck.com/advisories/r-i386-local-buffer-overflow-sehnvd

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