CVE-2016-20040 — TiEmu 3.03-nogdb+dfsg-3 Buffer Overflow via ROM Parameter

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HIGH

TiEmu 3.03-nogdb+dfsg-3 Buffer Overflow via ROM Parameter

Published Mar 28, 2026

8.6

HIGH

CVSS 4.0

EPSS 0.16%

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.

Affected products

Vendor Ticalc Product Texas Instrument Emulator Default
n/a
- Version
  3.03
  Status
  affected
  Constraints
  -

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor

Product

Default status

Versions

Ticalc

Texas Instrument Emulator

n/a

Version	Status	Constraints
3.03	affected	-

Remediation

No remediation recorded yet.

Metrics

0.16% 0.00163

Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.

EPSS probability 0.00163

Score over time

Mar–Oct 2026

EPSS v4
EPSS v5

Percentile over time

EPSS v4
EPSS v5

Table of values (3 key points)

Flat stretches are collapsed; showing up to 120 newest points.

Date	Score	Percentile	Model
Oct 1, 2026	0.16% (0.00163)	4.94th	v5 (v2026.06.15)
Jun 15, 2026	0.16% (0.00163)	5.85th	v5 (v2026.06.15)
Mar 28, 2026	0.02% (0.00017)	4.17th	v4 (v2025.03.14)

Weaknesses (1)

CWE-22

Path Traversal

References (3)

http://lpg.ticalc.org/prj_tiemu/
product
https://www.exploit-db.com/exploits/39692
exploit
https://www.vulncheck.com/advisories/tiemu-nogdb-dfsg-3-buffer-overflow-via-rom-parameter
third-party-advisory

Link	Providers	Tags
http://lpg.ticalc.org/prj_tiemu/		product
https://www.exploit-db.com/exploits/39692		exploit
https://www.vulncheck.com/advisories/tiemu-nogdb-dfsg-3-buffer-overflow-via-rom-parameter		third-party-advisory