CVE-2016-20041 Yasr 0.6.9-5 Buffer Overflow via Command-line Parameter
Local attackers can execute arbitrary code or crash the Yasr screen reader by supplying an oversized argument to the -p command-line parameter.
- 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-2016-20041?
CVE-2016-20041 is a high-severity memory corruption vulnerability in Yasr Screen Reader, 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
Yasr 0.6.9-5 contains a buffer overflow vulnerability that allows local attackers to crash the application or execute arbitrary code by supplying an oversized argument to the -p parameter. Attackers can invoke yasr with a crafted payload containing junk data, shellcode, and a return address to overwrite the stack and trigger code execution.
Weakness: CWE-22
Which versions are affected by CVE-2016-20041?
How do I fix CVE-2016-20041?
No fix has been published for CVE-2016-20041 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-2016-20041 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2016-20041 exists.
Sources
Also known as GHSA-gqgj-pcrq-fwjh, UBUNTU-CVE-2016-20041.