CVE-2017-20226 Mapscrn 2.0.3 Stack-Based Buffer Overflow
Local attackers can execute arbitrary code or cause denial of service via a stack-based buffer overflow in Mapscrn.
- 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-2017-20226?
CVE-2017-20226 is a high-severity memory corruption vulnerability in msk Mapscrn, published on 28 Mar 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Mapscrn 2.0.3 contains a stack-based buffer overflow vulnerability that allows local attackers to execute arbitrary code by supplying an oversized input buffer. Attackers can craft a malicious buffer with junk data, return address, NOP instructions, and shellcode to overflow the stack and achieve code execution or denial of service.
Weakness: CWE-787
Which versions are affected by CVE-2017-20226?
How do I fix CVE-2017-20226?
No fix has been published for CVE-2017-20226 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-2017-20226 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2017-20226 exists.
Sources
Also known as GHSA-43wf-f52v-7wq4.