Is CVE-2018-25126 actively exploited?

Yes. KEV Intelligence tracks CVE-2018-25126 as a known exploited vulnerability. Confidence is high.

What exploitation activity has KEV Intelligence observed?

KEV Intelligence has not yet recorded sensor-observed exploitation attempts for CVE-2018-25126. Our sensors continue to monitor for activity targeting this CVE.

Which versions are affected?

CVE-2018-25126 affects Shenzhen TVT Digital Technology Co., Ltd. NVMS-9000. Reported affected version: 0 to < mid-February firmware builds.

No. CVE-2018-25126 is not currently listed in CISA KEV.

Vulnerability report

Exploited in the wild High confidence Not in CISA KEV

CVE-2018-25126

Q: How should organizations remediate it?

Prioritize remediation. Validate affected assets and apply vendor fixes on an accelerated timeline.

Q: Is it in CISA KEV?

No. CVE-2018-25126 is not currently listed in CISA KEV.

TVT NVMS-9000 Hard-coded API Credentials & Command Injection

Shenzhen TVT Digital Technology Co. / NVMS-9000 · affected before mid-February firmware builds

View live feed Monitor via API Watch CVE

Severity: CVSS 9.3 · Critical
Confidence: High
Exploit status: Exploited in the wild
EPSS: 4.1%
First observed: —
Last observed: —

Decision summary

What security teams need to know first

Direct answers before the deeper technical record.

What it is

CVE-2018-25126 is an unauthenticated TVT NVMS-9000 Hard-coded API Credentials & Command Injection. Shenzhen TVT Digital Technology Co., Ltd. NVMS-9000 firmware (used by many white-labeled DVR/NVR/IPC products)...

Is it exploited?

Yes. KEV Intelligence tracks this CVE as a known exploited vulnerability. Confidence is high.

Who is affected?

Shenzhen TVT Digital Technology Co., Ltd. / NVMS-9000 affected before mid-february firmware builds.

What should we do?

Prioritize remediation. Validate affected assets and apply vendor fixes on an accelerated timeline.

Overview

Shenzhen TVT Digital Technology Co., Ltd

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.

Vendor Product Affected Status

Shenzhen TVT Digital Technology Co., Ltd. NVMS-9000 Before mid-February firmware builds Affected

View vendor advisory

Published: 24 Nov 2025
Exploitation Reported: 24 Nov 2025
Attack vector: Remote
Complexity: Low
Privileges: None
User interaction: None

CVE References

CVE Record CVE.org · CVE Record https://www.cve.org/CVERecord?id=CVE-2018-25126
Vendor Advisory — web.archive.org web.archive.org · Vendor Advisory https://web.archive.org/web/20180614014914/http://en.tvt.net.cn:80/ne...
Third-Party Advisory — vulncheck.com vulncheck.com · Third-Party Advisory https://www.vulncheck.com/advisories/tvt-nvms9000-hardcoded-api-crede...
GitHub — mcw0/PoC github.com · Exploit https://github.com/mcw0/PoC/blob/master/TVT_and_OEM_IPC_NVR_DVR_RCE_B...
Exploit — qkl.seebug.org qkl.seebug.org · Exploit https://qkl.seebug.org/vuldb/ssvid-97217
Related — blogs.juniper.net blogs.juniper.net · Related https://blogs.juniper.net/en-us/threat-research/iot-botnet-exploiting...

Exploitation evidence

Why KEV Intelligence marks this CVE as exploited

Third-party attestation and first-party sensor observation are shown separately so teams can judge the evidence chain.

Exploited in the wild

The Shadowserver

Recorded 24 Nov 2025

Independent exploitation attestation added to the KEV Intelligence record.

Known exploited vulnerability sources

Per-source evidence links for KEV attestations are available through the KEV Intelligence Pro API.

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Source	Added
The Shadowserver First	2025-11-24 20:30 UTC

Detection

Operational artifacts and observed signals

Make the evidence actionable in scanner, SOC, and edge-control workflows.

Observed signals

Request targets: 0
User-Agents: 0

Raw values available in Pro and Enterprise.

Scanner coverage

No scanner integrations recorded yet.

Virtual patch status

No KEV Intelligence virtual patch is currently available. Future rules ship for ModSecurity, Cloudflare, and AWS WAF.

Learn about virtual patches →

No detection artifacts or sensor request patterns are available for this CVE yet.

Check back as sensor telemetry and scanner integrations are updated.

Risk and context

Severity, weaknesses, and research context

CVSS v4.0

9.3 Critical

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

EPSS

4.1%

Weaknesses

Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') CWE-78 Use of Hard-coded Credentials CWE-798

Timeline

From disclosure to observed exploitation

24 Nov 2025
CVE published

Vulnerability disclosed publicly
24 Nov 2025
Added to KEV Intelligence KEV Feed

High-confidence, third-party attested exploitation
24 Nov 2025
CVE ID reserved

Identifier reserved by the CNA

Pro API

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Evidence confidence and provenance
First-party sensor telemetry
PoC and scanner references
Affected versions and enrichment
Automation-ready JSON delivery

GET /api/v2/pro/kevs/CVE-2018-25126

Free JSON includes basic KEV fields

{
  "cve_id": "CVE-2018-25126",
  "confidence": "High",
  "cvss_score": 9.3,
  "cvss_estimated": false,
  "epss_score": 0.04126,
  "exploit_status": {
    "exploited_in_the_wild": true,
    "active_exploitation_observed": false
  },
  "sensor_telemetry": { "attempts": 0, "sensors": 0 }
}

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