CVE-2019-20085
Path Traversal in Tvt Nvms-1000 Firmware
Raw vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:NCVSS and EPSS are reproduced from their sources (NVD, FIRST EPSS). Risk Priority is our own derived reading, not an NVD score.
Summary
CVE-2019-20085 is a high-severity Path Traversal (CWE-22) vulnerability in Tvt Nvms-1000 Firmware. Its CVSS base score is 7.5 (High).
Operationally, exploitation aligns with the MITRE ATT&CK technique Data Obfuscation (T1001); ranked in the top 0.1% of CVEs by exploit likelihood; CISA has added it to the Known Exploited Vulnerabilities catalog; a public proof-of-concept is referenced.
Deeper analysis AI-assisted summary
Synthesised by an AI model from the NVD description and linked references — a reading aid, not an authoritative source.
TVT NVMS-1000 devices are affected by a directory traversal vulnerability, CVE-2019-20085, that permits GET requests containing /.. sequences to access restricted paths. The flaw is categorized as CWE-22 and is rated 7.5 on CVSS 3.1, reflecting network attack vector, low complexity, and high confidentiality impact without requiring authentication or user interaction.
Unauthenticated remote attackers can exploit the issue to read arbitrary files on affected devices, resulting in disclosure of sensitive configuration or operational data.
Public exploit code has been published on Exploit-DB and Packet Storm, and the vulnerability appears in the CISA Known Exploited Vulnerabilities catalog, confirming observed in-the-wild use. No vendor mitigation details are provided in the referenced sources.
OWASP Top 10 for Web (2025)
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2019-10641
Vulnerability Data
TVT NVMS-1000 devices allow GET /.. Directory Traversal
- CWE(s)
- KEV Date Added
- 03 November 2021
Related Threats
MITRE ATT&CK Enterprise Techniques
CVEs Like This One
Affected Assets
Mitigating Controls
Control response
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V5.3.2
Likely Mitigating Controls AI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
Validates pathnames and filenames to prevent traversal outside intended directories.
Mitigating Controls (NIST CSF 2.0) AI
Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.
Patching/maintenance can remediate known path-traversal flaws in deployed software (partial prevention of exploitability) but does nothing to stop the coding defect from being introduced in the first place.
PR.AA-05 defines and reviews access policies but does not address code-level pathname neutralization, so neither direction prevents CWE-22.
Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI
Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.