Buffer Overflow Vulnerability in Yasr Application
CVE-2016-20041

8.6HIGH

Key Information:

Vendor

Yasr

Status
Yasr Screen Reader
Vendor
CVE Published:
28 March 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2016-20041?

The Yasr application version 0.6.9-5 is prone to a buffer overflow vulnerability. This flaw enables local attackers to potentially crash the application or execute arbitrary code by delivering an oversized argument to the '-p' command-line parameter. By launching Yasr with a meticulously crafted payload that includes junk data and malicious shellcode, attackers could overwrite the stack and trigger unintended code execution, creating serious security risks.

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Affected Version(s)

Yasr Screen Reader 0.6.9-5

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2016-20041 - Proof of Concept

References

https://www.exploit-db.com/exploits/39734
exploit
http://yasr.sourceforge.net/
product
https://www.vulncheck.com/advisories/yasr-5-buffer-overfl...
third-party-advisory

CVSS V4

Score:
8.6
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Juan Sacco - http://www.exploitpack.com - jsacco@exploitpack.com, Juan Sacco"
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