Local code execution via oversized ROM argument
Published Mar 28, 2026 · Updated Mar 28, 2026
Stack buffer overflow in TiEmu 3.03 allows local users to crash the application or execute arbitrary code via an oversized ROM argument. The ROM parameter handler accepts an oversized command-line value into a fixed-size stack buffer without bounds enforcement, allowing the value to overwrite the instruction pointer. Local invocation of the tiemu command is required, and successful exploitation runs code with the invoking user's privileges.
Summary
What happened
Stack buffer overflow in TiEmu 3.03 allows local users to crash the application or execute arbitrary code via an oversized ROM argument. The ROM parameter handler accepts an oversized command-line value into a fixed-size stack buffer without bounds enforcement, allowing the value to overwrite the instruction pointer. Local invocation of the tiemu command is required, and successful exploitation runs code with the invoking user's privileges.
The record
- CVE
- CVE-2016-20040
- Published
- Mar 28, 2026
- Updated
- Mar 28, 2026
- Vendor
- Linux Programmers Group
- Product
- TiEmu
- Classifications
- CWE-22, T1203
- Attack vector
- local
- Privileges
- unauthenticated
Timeline
How it unfolded
- Mar 28, 2026CVE publishedPublication date reported by the CVE source.
- Mar 28, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=3.03
What conditions does exploitation require?
What is affected?
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
- Texas Instrument Emulator 3.03 - Local Buffer Overflowproof of concept · demonstrated
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Technologies
Your stack
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Your stack
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