Buffer Overflow Vulnerability in TiEmu by Ticalc
CVE-2016-20040

8.6HIGH

Key Information:

Vendor

Ticalc

Status
Texas Instrument Emulator
Vendor
CVE Published:
28 March 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2016-20040?

TiEmu 3.03-nogdb+dfsg-3 is affected by a buffer overflow vulnerability in the handling of ROM parameters through the command-line interface. Attackers can exploit this flaw by inputting an oversized ROM parameter, which results in a stack buffer overflow. This exploitation has the potential to crash the TiEmu application or allow unauthorized execution of arbitrary code. Given its programmable nature, the vulnerability poses significant risks to users who may not be aware of the best security practices.

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Affected Version(s)

Texas Instrument Emulator 3.03

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-2016-20040 - Proof of Concept

References

https://www.exploit-db.com/exploits/39692
exploit
http://lpg.ticalc.org/prj_tiemu/
product
https://www.vulncheck.com/advisories/tiemu-nogdb-dfsg-3-b...
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 -
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