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.
Metrics
Affected Vendors & Products
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History
Tue, 25 Nov 2025 13:15:00 +0000
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Tvt
Tvt nvms-9000 Firmware |
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| CPEs | cpe:2.3:o:tvt:nvms-9000_firmware:-:*:*:*:*:*:*:* | |
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Tvt
Tvt nvms-9000 Firmware |
Mon, 24 Nov 2025 21:15:00 +0000
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Mon, 24 Nov 2025 20:45:00 +0000
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| 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 |
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| References |
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| Metrics |
cvssV4_0
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Status: PUBLISHED
Assigner: VulnCheck
Published: 2025-11-24T20:30:45.278Z
Updated: 2025-11-25T13:06:45.928Z
Reserved: 2025-11-24T18:22:09.862Z
Link: CVE-2018-25126
Updated: 2025-11-24T21:02:56.263Z
Status : Awaiting Analysis
Published: 2025-11-24T21:16:00.153
Modified: 2025-11-25T22:16:16.690
Link: CVE-2018-25126
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