Vulnerability-Lookup

GHSA-822W-CRCW-46RX

Vulnerability from github – Published: 2026-03-16 15:30 – Updated: 2026-03-16 15:30

Details

Tinycontrol devices such as tcPDU and LAN Controllers LK3.5, LK3.9 and LK4 have two separate authentication mechanisms - one solely for interface management and one for protecting all other server resources. When the latter is turned off (which is a default setting), an unauthenticated attacker on the local network can obtain usernames and encoded passwords for interface management portal by inspecting the HTTP response of the server when visiting the login page, which contains a JSON file with these details. Both normal and admin users credentials are exposed. This issue has been fixed in firmware versions: 1.36 (for tcPDU), 1.67 (for LK3.5 - hardware versions: 3.5, 3.6, 3.7 and 3.8), 1.75 (for LK3.9 - hardware version 3.9) and 1.38 (for LK4 - hardware version 4.0).

Severity ?

8.7 (High)


                  
                    CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2025-11500"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-201"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-03-16T14:17:54Z",
    "severity": "HIGH"
  },
  "details": "Tinycontrol devices such as tcPDU and\u00a0LAN Controllers LK3.5, LK3.9 and LK4\u00a0have two separate authentication mechanisms - one solely for interface management and one for protecting all other server resources. When the latter is turned off (which is a default setting), an unauthenticated attacker on the local network can obtain usernames and encoded passwords for interface management portal by inspecting the HTTP response of the server when visiting the login page, which contains a JSON file with these details. Both normal and admin users credentials are exposed.\u00a0\nThis issue has been fixed in firmware versions: 1.36 (for tcPDU), 1.67 (for LK3.5 - hardware versions: 3.5, 3.6, 3.7 and 3.8), 1.75 (for LK3.9 - hardware version 3.9) and\u00a01.38 (for LK4 - hardware version 4.0).",
  "id": "GHSA-822w-crcw-46rx",
  "modified": "2026-03-16T15:30:41Z",
  "published": "2026-03-16T15:30:41Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-11500"
    },
    {
      "type": "WEB",
      "url": "https://cert.pl/en/posts/2026/03/CVE-2025-11500"
    },
    {
      "type": "WEB",
      "url": "https://securitum.com/CVE-2025-11500"
    },
    {
      "type": "WEB",
      "url": "https://tinycontrol.pl/en/archives/lan-controller-35/downloads/#firmware"
    },
    {
      "type": "WEB",
      "url": "https://tinycontrol.pl/en/lk39/downloads/#firmware"
    },
    {
      "type": "WEB",
      "url": "https://tinycontrol.pl/en/lk4/downloads/#firmware"
    },
    {
      "type": "WEB",
      "url": "https://tinycontrol.pl/en/tcpdu/downloads/#firmware"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
      "type": "CVSS_V4"
    }
  ]
}

CVE-2025-11500 (GCVE-0-2025-11500)

Vulnerability from cvelistv5 – Published: 2026-03-16 09:26 – Updated: 2026-03-16 16:24

Title

Credentials exposure in tinycontrol devices

Summary

Severity ?

8.7 (High)


                        
                          CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

CWE

CWE-261 - Weak Encoding for Password
CWE-201 - Insertion of Sensitive Information Into Sent Data

Assigner

CERT-PL

References

URL

Tags

	https://cert.pl/en/posts/2026/03/CVE-2025-11500/	third-party-advisory
	https://securitum.com/CVE-2025-11500	technical-description
	https://tinycontrol.pl/en/archives/lan-controller…	release-notes
	https://tinycontrol.pl/en/lk39/downloads/#firmware	release-notes
	https://tinycontrol.pl/en/lk4/downloads/#firmware	release-notes
	https://tinycontrol.pl/en/tcpdu/downloads/#firmware	release-notes

Impacted products

Vendor

Product

Version

tinycontrol

Lan Kontroler v3.5

Affected: 0 , < 1.67 (semver)

tinycontrol	LK3.9	Affected: 0 , < 1.75 (semver)
tinycontrol	LK4	Affected: 0 , < 1.38 (semver)
tinycontrol	tcPDU	Affected: 0 , < 1.36 (semver)

Credits

Paweł Różański (Securitum.com)

Show details on NVD website

JSON

To clipboard

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                "id": "CVE-2025-11500",
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                  },
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                "role": "CISA Coordinator",
                "timestamp": "2026-03-16T16:24:05.827486Z",
                "version": "2.0.3"
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          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
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      "metrics": [
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            "Recovery": "NOT_DEFINED",
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            "privilegesRequired": "NONE",
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          "url": "https://tinycontrol.pl/en/lk4/downloads/#firmware"
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Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

GHSA-822W-CRCW-46RX

CVE-2025-11500 (GCVE-0-2025-11500)

Tags

Sightings

Nomenclature