Is CVE-2016-20040 actively exploited?

No active exploitation of CVE-2016-20040 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2016-20040 be exploited remotely?

No. CVE-2016-20040 requires local access to exploit.

What is the CVSS score of CVE-2016-20040?

CVE-2016-20040 has a CVSS score of 8.4 (HIGH).

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HIGH

CVE-2016-20040

CWE-22Published: March 28, 2026· Updated: Mar 30, 2026

8.4

CVSS v3.1

EPSS:0.02%probability of exploitation in 30 daysPercentile:4.1th

Official Description

TiEmu 3.03-nogdb+dfsg-3 contains a buffer overflow vulnerability in the ROM parameter handling that allows local attackers to crash the application or execute arbitrary code. Attackers can supply an oversized ROM parameter to the tiemu command-line interface to overflow the stack buffer and overwrite the instruction pointer with malicious addresses.

NVD Source

Technical Analysis

CVE-2016-20040 requires local access, meaning attackers must already have a foothold on the target system.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 8.4.