CVE-2018-17614
This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Losant Arduino MQTT Client prior to V2.7.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (9.70%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
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.
- CVSS 3.0
- 8.8 HIGHCVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 9.70% probability · 95th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-121, CWE-119
- Affected
- losant/arduino mqtt client
- Source
- zdi-disclosures@trendmicro.com
EPSS moved from 6.9% on 21 September 2026 to 9.7% on 27 October 2026. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”.
References
- https://github.com/knolleary/pubsubclient/releases/tag/v2.7Release Notes
- https://zerodayinitiative.com/advisories/ZDI-18-1337Release Notes, Third Party Advisory, VDB Entry
- https://github.com/knolleary/pubsubclient/releases/tag/v2.7Release Notes
- https://zerodayinitiative.com/advisories/ZDI-18-1337Release Notes, Third Party Advisory, VDB Entry
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.