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CVE-2019-20085

KEVTVT NVMS-1000 Directory Traversal Vulnerability

TVT devices utilizing NVMS-1000 software contain a directory traversal vulnerability via GET /.. requests.

TVT NVMS-1000 devices allow GET /.. Directory Traversal

CVSS 3.1 vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
PublishedDec 30, 2019
Last modifiedJun 17, 2026
Added to KEVNov 3, 2021
Remediation dueMay 3, 2022
    77
    Risk assessment · High

    Actively exploited. Patch immediately.

    Exploitation
    Confirmed in the wild (CISA KEV)
    Federal remediation deadline
    Overdue by 1637 days
    CVSS
    7.5 HIGH
    EPSS (30-day exploit probability)
    96.1% · top 1% of all CVEs
    Weakness
    CWE-22
    Attack vector
    Network, remotely reachable
    Preconditions
    No privileges and no user interaction
    1. 1.Apply updates per vendor instructions.
    2. 2.Treat as emergency change: patch or isolate internet-facing instances first.
    3. 3.Review exposure: confirm which instances are reachable from the internet and restrict access until patched.
    4. 4.Hunt for compromise: review logs for the disclosure window, not just from the patch date.

    Assessment is derived automatically from the live signals above; verify against your own asset inventory.