Description
Shenzhen TVT Digital Technology Co., Ltd. NVMS-9000 firmware (used by many white-labeled DVR/NVR/IPC products) contains hardcoded API credentials and an OS command injection flaw in its configuration services. The web/API interface accepts HTTP/XML requests authenticated with a fixed vendor credential string and passes user-controlled fields into shell execution contexts without proper argument sanitization. An unauthenticated remote attacker can leverage the hard-coded credential to access endpoints such as /editBlackAndWhiteList and inject shell metacharacters inside XML parameters, resulting in arbitrary command execution as root. The same vulnerable backend is also reachable in some models through a proprietary TCP service on port 4567 that accepts a magic GUID preface and base64-encoded XML, enabling the same command injection sink. Firmware releases from mid-February 2018 and later are reported to have addressed this issue. Exploitation evidence was observed by the Shadowserver Foundation on 2025-01-28 UTC.
Published: 2025-11-24
Score: 9.3 Critical
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

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History

Tue, 25 Nov 2025 13:15:00 +0000

Type Values Removed Values Added
First Time appeared Tvt
Tvt nvms-9000 Firmware
CPEs cpe:2.3:o:tvt:nvms-9000_firmware:-:*:*:*:*:*:*:*
Vendors & Products Tvt
Tvt nvms-9000 Firmware

Mon, 24 Nov 2025 21:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Mon, 24 Nov 2025 20:45:00 +0000

Type Values Removed Values Added
Description Shenzhen TVT Digital Technology Co., Ltd. NVMS-9000 firmware (used by many white-labeled DVR/NVR/IPC products) contains hardcoded API credentials and an OS command injection flaw in its configuration services. The web/API interface accepts HTTP/XML requests authenticated with a fixed vendor credential string and passes user-controlled fields into shell execution contexts without proper argument sanitization. An unauthenticated remote attacker can leverage the hard-coded credential to access endpoints such as /editBlackAndWhiteList and inject shell metacharacters inside XML parameters, resulting in arbitrary command execution as root. The same vulnerable backend is also reachable in some models through a proprietary TCP service on port 4567 that accepts a magic GUID preface and base64-encoded XML, enabling the same command injection sink. Firmware releases from mid-February 2018 and later are reported to have addressed this issue. Exploitation evidence was observed by the Shadowserver Foundation on 2025-01-28 UTC.
Title TVT NVMS-9000 Hard-coded API Credentials & Command Injection
Weaknesses CWE-78
CWE-798
References
Metrics cvssV4_0

{'score': 9.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N'}


Subscriptions

Tvt Nvms-9000 Firmware
cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2025-11-25T13:06:45.928Z

Reserved: 2025-11-24T18:22:09.862Z

Link: CVE-2018-25126

cve-icon Vulnrichment

Updated: 2025-11-24T21:02:56.263Z

cve-icon NVD

Status : Deferred

Published: 2025-11-24T21:16:00.153

Modified: 2026-04-15T00:35:42.020

Link: CVE-2018-25126

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses