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PatchSiren cyber security CVE debrief

CVE-2025-29629 Gardyn CVE debrief

CVE-2025-29629 is a high-severity Gardyn issue where weak default credentials for SSH could let attackers gain access to exposed Gardyn Home Kits. The CISA CSAF advisory was first published on 2026-02-24 and later updated on 2026-04-02. The source remediation guidance emphasizes upgrading device firmware and the Gardyn mobile app rather than attempting any workaround on the exposed credentials themselves.

Vendor
Gardyn
Product
<master.619
CVSS
HIGH 8.3
CISA KEV
Not listed in stored evidence
Original CVE published
2026-02-24
Original CVE updated
2026-07-02
Advisory published
2026-02-24
Advisory updated
2026-07-02

Who should care

Owners and operators of Gardyn Home Kits, anyone administering Gardyn Studio/Home devices, and support teams responsible for keeping the mobile app and device firmware current should treat this as a priority. It also matters to users who leave the devices network-connected and reachable from untrusted networks.

Technical summary

The advisory states that the Gardyn Home Kit uses weak default credentials for secure shell (SSH) access, which may allow attackers to access exposed devices. The supplied CSAF metadata also links the advisory to Gardyn Home Firmware, Gardyn Studio Firmware, Gardyn Mobile Application <2.11.0, and Gardyn Cloud API <2.12.2026, while the remediation text specifically recommends upgrading home kit and studio firmware to master.622 or later and using the latest Gardyn mobile application. The issue is described as network-relevant because access depends on exposed SSH services and weak credentials, not on code execution or a public exploit chain in the supplied corpus.

Defensive priority

High — the weakness involves default SSH credentials on exposed devices, which can directly undermine access control. The supplied advisory recommends prompt patching to firmware master.622 or later and updating the mobile app, and the CVSS score provided is 8.3 (HIGH).

Recommended defensive actions

  • Update the Gardyn mobile application to the latest supported version.
  • Upgrade Gardyn home kit and studio devices to firmware master.622 or later.
  • Verify the current app and firmware versions in the Gardyn app.
  • Keep the devices network-connected so firmware updates can download automatically.
  • If updates do not apply cleanly, follow the official Gardyn security/support guidance and contact [email protected].

Evidence notes

Primary evidence comes from the CISA CSAF advisory for ICSA-26-055-03 / CVE-2025-29629, which states that weak default SSH credentials may allow access to exposed Gardyn Home Kits. The advisory revision history shows initial publication on 2026-02-24 and Update A on 2026-04-02, which expanded affected-product mapping and modified mitigations. The supplied enrichment marks this as not listed in CISA KEV. No exploit code, weaponized reproduction, or unsupported attack details are included here.

Sources and references

Verified primary and authoritative sources

  • CVE-2025-29629 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2025-29629

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2025-29629 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2025-29629

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

  • Source item URL

    Unverified legacy reference

    URL: https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/OT/white/2026/icsa-26-055-03.json

    cisa_csaf

  • Source reference

    Unverified legacy reference

    URL: https://www.cisa.gov/news-events/ics-advisories/icsa-26-055-03

    Reference

  • Source reference

    Unverified legacy reference

    URL: https://www.cisa.gov/uscert/ics/alerts/ICS-ALERT-10-301-01

    Reference

  • Source reference

    Unverified legacy reference

    URL: https://www.cisa.gov/resources-tools/resources/ics-recommended-practices

    Reference

  • Source reference

    Unverified legacy reference

    URL: https://www.cisa.gov/sites/default/files/publications/Cybersecurity_Best_Practices_for_Industrial_Control_Systems.pdf

    Reference

  • Source reference

    Unverified legacy reference

    URL: https://www.cisa.gov/topics/industrial-control-systems

    Reference

  • Source reference

    Unverified legacy reference

    URL: https://www.cisa.gov/news-events/ics-alerts/ics-alert-10-301-01

    Reference

  • Source reference

    Unverified legacy reference

    URL: https://www.cisa.gov/sites/default/files/recommended_practices/NCCIC_ICS-CERT_Defense_in_Depth_2016_S508C.pdf

    Reference

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.