TiEmu 3.03-nogdb+dfsg-3 Buffer Overflow via ROM Parameter
Key facts
- Attack vector
- Local
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA.
Summary
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2016-20040
- 2026-10-03 Alias added: GHSA-253h-f8wh-gcxr
References
Exploit 1
Other 1
More ticalc vulnerabilities
- TI-2017-14291 TiEmu 2.08 Stack-Based Buffer Overflow Vulnerability CVSS 4.0CRITICAL 9.3
Sources
- CVE-2016-20040 · CVE Program
- CVE-2016-20040 · NVD
- FIRST EPSS
- GHSA-253h-f8wh-gcxr · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences