Stack-based buffer overflow in Losant Arduino MQTT Client
Key facts
- Attack vector
- Adjacent network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA. Impact type from CWE-121 and the CVSS impact.
Summary
This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Losant Arduino MQTT Client prior to V2.7. User interaction is not required to exploit this vulnerability. The specific flaw exists within the parsing of MQTT PUBLISH packets. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-6436.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
Remediation
- Fix · CNA Losant Arduino MQTT Client (Losant) Fixed in V2.7
Timeline
- 2026-10-02 Threatist record created from CVE-2018-17614
- 2026-10-03 Alias added: GHSA-v2rq-3pp5-wf98
References
Sources
- CVE-2018-17614 · CVE Program
- CVE-2018-17614 · NVD
- FIRST EPSS
- GHSA-v2rq-3pp5-wf98 · 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