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CVE-2018-25126 (GCVE-0-2018-25126)

Vulnerability from cvelistv5 – Published: 2025-11-24 20:30 – Updated: 2025-11-25 13:06 X_Known Exploited Vulnerability
VLAI Shadowserver Previdian
Title
TVT NVMS-9000 Hard-coded API Credentials & Command Injection
Summary
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.
SSVC
Exploitation: poc Automatable: yes Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-11-24 21:02 UTC
CWE
  • CWE-798 - Use of Hard-coded Credentials
  • CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Impacted products
Vendor Product Version CPE status
Shenzhen TVT Digital Technology Co., Ltd. NVMS-9000 Affected: 0 , < mid-February firmware builds (custom)
    cpe:2.3:o:tvt:nvms-9000_firmware:-:*:*:*:*:*:*:*
Create a notification for this product.
Credits
Shadowserver
Known Exploited Vulnerability - GCVE BCP-07 Compliant

Vulnerability ID: CVE-2018-25126

Status: Confirmed

Status Updated: 2026-07-08 00:00 UTC

Exploited: Yes


Timestamps
First Seen: 2026-01-20
Asserted: 2026-01-20
Last Seen: 2026-07-08

Scope
Asset Exposure: ['internet-facing']
Notes: Affected: Shenzhen TVT / Shenzhen TVT Digital Technology DVR/NVR/IPC | Class: video-system | IoT: yes | In CISA KEV: no | Honeypot connections on 2026-07-08: 2318

Evidence

Type: Honeypot

Signal: In The Wild Attempts

Confidence: 70%

Source: shadowserver


Details
1D 6
Iot yes
Feed Shadowserver Foundation honeypot/exploited-vulnerabilities
Type http-scan
Class video-system
7D Avg 1
Vendor Shenzhen TVT
30D Avg 0
90D Avg 0
Product Shenzhen TVT Digital Technology DVR/NVR/IPC
Cisa Kev no
Connections 2318
Observation Date 2026-07-08
Vulnerability Class None
Vulnerability Score None
Vulnerability Severity None

References

Created: 2026-06-30 09:42 UTC | Updated: 2026-07-10 01:00 UTC
Previdian
Known Exploited Vulnerability - GCVE BCP-07 Compliant

Vulnerability ID: CVE-2018-25126

Status: Confirmed

Status Updated: 2025-11-24 20:30 UTC

Exploited: Yes


Timestamps
First Seen: 2025-11-24
Asserted: 2025-11-24

Scope
Notes: KEVIntel entry: TVT NVMS-9000 Hard-coded API Credentials & Command Injection | Affected: Shenzhen TVT Digital Technology Co., Ltd. / NVMS-9000 | CVSS: 9.3 (CRITICAL) | Used in malware: unknown | Not yet in CISA KEV: True

Evidence

Type: Public Report

Signal: Successful Exploitation

Confidence: 70%

Source: kevintel


Details
Feed KEVIntel (kevintel.com)
Title TVT NVMS-9000 Hard-coded API Credentials & Command Injection
Vendor Shenzhen TVT Digital Technology Co., Ltd.
Product NVMS-9000
Added Date 2025-11-24T20:30:45.000Z
Cvss Score 9.3
Epss Score None
Cvss Severity CRITICAL
Epss Percentile None
Used In Malware unknown
Ahead Of Cisa Kev None
Not Yet In Cisa Kev True

References

Created: 2026-06-23 14:03 UTC | Updated: 2026-07-10 06:14 UTC
Show details on NVD website

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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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  • 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.

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Detection rules are retrieved from Rulezet.

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Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.


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