CVE-2019-25485 R 3.4.4 Windows x64 Buffer Overflow SEH DEP ASLR Bypass
Local attackers can execute arbitrary code by exploiting a buffer overflow in the R GUI language menu, bypassing DEP and ASLR protections.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2019-25485?
CVE-2019-25485 is a medium-severity memory corruption vulnerability in R-Project R, published on 11 Mar 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
R 3.4.4 on Windows x64 contains a buffer overflow vulnerability in the GUI Preferences language menu field that allows local attackers to bypass DEP and ASLR protections. Attackers can inject a crafted payload through the Language for menus preference to trigger a structured exception handler chain pivot and execute arbitrary shellcode with application privileges.
Weakness: CWE-787
Which versions are affected by CVE-2019-25485?
How do I fix CVE-2019-25485?
No fix has been published for CVE-2019-25485 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2019-25485 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2019-25485 exists.
Public exploit code: 1 proofs of concept on GitHub.
Sources
Also known as GHSA-48cq-3q6q-vxm7.