CVE-2025-11500

Credential disclosure via unauthenticated login-page JSON response

Published Mar 16, 2026 · Updated Mar 16, 2026

Sensitive-data exposure in tinycontrol tcPDU and LAN Controllers allows remote attackers to obtain interface-management credentials. With server-resource authentication disabled, the default configuration, the login page's HTTP response embeds a JSON file containing usernames and encoded passwords. Local-network access is sufficient, and both normal-user and administrator credentials are exposed, enabling account compromise.

CVSS severity8.7
High
EPSS probability0.27%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Sensitive-data exposure in tinycontrol tcPDU and LAN Controllers allows remote attackers to obtain interface-management credentials. With server-resource authentication disabled, the default configuration, the login page's HTTP response embeds a JSON file containing usernames and encoded passwords. Local-network access is sufficient, and both normal-user and administrator credentials are exposed, enabling account compromise.

The record

CVE
CVE-2025-11500
Published
Mar 16, 2026
Updated
Mar 16, 2026
Vendor
tinycontrol
Product
Lan Controller v3.5
Classifications
CWE-261, CWE-201, T1555.003
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 16, 2026CVE publishedPublication date reported by the CVE source.
  2. Mar 16, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

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

  1. Affected versionversion=0 <1.67

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesunauthenticated

What is affected?

tinycontrol · Lan Controller v3.5version=0 <1.67
tinycontrol · LK3.9version=0 <1.75
tinycontrol · LK4version=0 <1.38
tinycontrol · tcPDUversion=0 <1.36

Published CVSS scores

8.7CERT.PLCVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/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)
Vectoradjacent
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-261Weak Encoding for Password
CWE-201Insertion of Sensitive Information Into Sent Data
T1555.003Credentials from Password Stores: Credentials from Web Browsers

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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