CVE-2018-25126 — Shenzhen TVT Digital Technology Co

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 f

01What is this vulnerability?

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…

02Affected products

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2025-11-24T20:30:45.278Z
• Last modified: 2025-11-25T13:06:45.928Z

09References

• web.archive.org — https://web.archive.org/web/20180614014914/http://en.tvt.net.cn:80/news/227.html
• github.com — https://github.com/mcw0/PoC/blob/master/TVT_and_OEM_IPC_NVR_DVR_RCE_Backdoor_and…
• qkl.seebug.org — https://qkl.seebug.org/vuldb/ssvid-97217
• blogs.juniper.net — https://blogs.juniper.net/en-us/threat-research/iot-botnet-exploiting-tvt-shenzh…
• www.vulncheck.com — https://www.vulncheck.com/advisories/tvt-nvms9000-hardcoded-api-credentials-and-…