CVE-2026-54477Network attack vector

Admin-panel data exposure and alteration via missing headers

Published Jul 2, 2026 · Updated Jul 2, 2026

Improper HTTP header handling in Gardyn IoT Hub products allows remote attackers to trigger clickjacking or XSS in the admin panel. The panel omits unspecified standard security headers, leaving browser framing and script-handling protections ineffective; Gardyn has not identified the exact headers or implementation locus. Exploitation requires active user interaction and can expose or alter data through the panel, with no reported service interruption.

CVSS severity5.1
Medium
EPSS probability0.33%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper HTTP header handling in Gardyn IoT Hub products allows remote attackers to trigger clickjacking or XSS in the admin panel. The panel omits unspecified standard security headers, leaving browser framing and script-handling protections ineffective; Gardyn has not identified the exact headers or implementation locus. Exploitation requires active user interaction and can expose or alter data through the panel, with no reported service interruption.

The record

CVE
CVE-2026-54477
Published
Jul 2, 2026
Updated
Jul 2, 2026
Vendor
Gardyn
Product
Gardyn Studio Firmware
Classifications
CWE-644, T1204
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 2, 2026CVE publishedPublication date reported by the CVE source.
  2. Jul 2, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <master.627

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Gardyn · Gardyn Studio Firmwareversion=0 <master.627
Gardyn · Gardyn Cloud APIversion=0 <2.12.2026
Gardyn · Gardyn Home Firmwareversion=0 <master.627

Published CVSS scores

5.4ICS-CERTCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
5.1ICS-CERTCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-644Improper Neutralization of HTTP Headers for Scripting Syntax
T1204User Execution

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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