CVE-2026-55726
Public exploit code is available. Proof-of-concept or working exploit code for CVE-2026-55726 is indexed in GitHub PoC. Expect opportunistic scanning and exploitation attempts — prioritize remediation even though it is not (yet) in the CISA KEV catalog.
View CSAF Summary Successful exploitation of these vulnerabilities could allow unauthenticated users to access and control IoT Hub managed devices. The following versions of Gardyn IoT Hub are affected: Home Firmware Studio Firmware Cloud API <2.12.2026 (CVE-2026-13768, CVE-2026-55726, CVE-2026-54477) CVSS Vendor Equipment Vulnerabilities v3 10 Gardyn Gardyn IoT Hub Use of Hard-coded Credentials, Exposure of Sensitive System Information to an Unauthorized Control Sphere, Improper Neutralization of HTTP Headers for Scripting Syntax Background Critical Infrastructure Sectors: Food and Agriculture Countries/Areas Deployed: United States Company Headquarters Location: United States Vulnerabilities Expand All + CVE-2026-13768 Gardyn devices expose a privileged iothubowner key. Access to this key will allow a malicious user to invoke an IoTHub Registry Manager function which returns connection information for all Gardyn Home Kit and Studio devices. Access to this key also allows a malicious user to execute arbitrary commands on a specific connected device and may allow the malicious user to pivot to other devices on the user's network. View CVE Details Affected Products Gardyn IoT Hub Vendor: Gardyn Product Version: Gardyn Home Firmware: <master.627, Gardyn Studio Firmware: <master.627, Gardyn Cloud API: <2.12.2026 Product Status: known_affected Remediations Mitigation Gardyn states that IoT Hub deployed infrastructure has been updated to fix the listed vulnerabilities. Mitigation Gardyn requests that users ensure their devices have Internet connectivity in order to automatically download needed firmware updates. Unconnected devices will automatically update when configured with a working Internet connection. Gardyn also recommends that users update their mobile application to the most recent version. The current versions of the Gardyn App and the Gardyn Home firmware can be checked in the Gardyn App. Mitigation Further information on Gardyn security can be found here: ht
CSIRTS triage
- What
- Vulnerabilities could allow unauthenticated users to access and control managed devices.
- Who is affected
- Users of Gardyn IoT Hub with the specified firmware versions.
- Urgency
- Remediation is urgent due to the critical nature of the vulnerabilities.
- Action
- Apply the necessary updates as per the security advisories.
AI-assisted analysis generated from the source advisory — verify against the original.
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Exploitation outlook
- Low exploitation risk0.36% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 28% of all EPSS-scored CVEs.
Exploit availability
Public exploit or proof-of-concept code for CVE-2026-55726 is indexed in these free datasets. Available exploit code raises real-world risk independent of the CVSS score.
- GitHub PoCPublic proof-of-concept repositories on GitHub reference this CVE.look it up ↗
Advisory coverage (2)
- mediumCVE-2026-55726: The Azure Blob Storage container used for Gardyn device logs is publicly listable without auth…nvd · 2026-07-03
- criticalGardyn IoT Hubcisa · 2026-07-02
External references
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