---
title: "CVE-2016-20104: EyeLock nano NXT - Path Traversal"
description: "EyeLock nano NXT 3.05.1193, 3.04.1108, 3.03.944, and 3.01.646 contain a path traversal vulnerability caused by unvalidated readfile() usage in /scripts/logdownload.php, letting unauthenticated attackers read arbitrary files via the 'path' parameter."
url: https://panop.io/threat-heartbeat/CVE-2016-20104/
---

# CVE-2016-20104 EyeLock nano NXT - Path Traversal

EyeLock nano NXT 3.05.1193, 3.04.1108, 3.03.944, and 3.01.646 contain a path traversal vulnerability caused by unvalidated readfile() usage in /scripts/logdownload.php, letting unauthenticated attackers read arbitrary files via the 'path' parameter.

CVSS base score 7.5 /10

High

CISA KEV

Exploited in the wild

Public exploit

None known

Authentication

Not required

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2016-20104)

## Details

Type

Path Traversal

Impact

File System Read, Information Disclosure

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Published

20 October 2026

Updated

21 October 2026

Weakness

[CWE-22](https://cwe.mitre.org/data/definitions/22.html)

## Vendor fix

Update to the latest version of EyeLock nano NXT.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

## References

- [https://nvd.nist.gov/vuln/detail/CVE-2016-20104](https://nvd.nist.gov/vuln/detail/CVE-2016-20104)
- [https://www.exploit-db.com/exploits/40227](https://www.exploit-db.com/exploits/40227)
- [https://www.vulncheck.com/advisories/eyelock-nano-nxt-3.05.1193-path-traversal-via-logdownload-php](https://www.vulncheck.com/advisories/eyelock-nano-nxt-3.05.1193-path-traversal-via-logdownload-php)
- [https://www.zeroscience.mk/advisories/ZSL-2016-5356.html](https://www.zeroscience.mk/advisories/ZSL-2016-5356.html)
- [https://www.cve.org/CVERecord?id=CVE-2016-20104](https://www.cve.org/CVERecord?id=CVE-2016-20104)
- [https://github.com/projectdiscovery/nuclei-templates/blob/main/http/vulnerabilities/other/eyelock-nano-lfd.yaml](https://github.com/projectdiscovery/nuclei-templates/blob/main/http/vulnerabilities/other/eyelock-nano-lfd.yaml)
- [https://packetstorm.news/files/id/138274/](https://packetstorm.news/files/id/138274/)

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## What this record can't tell you

- Whether you run the affected software, and where
- Whether an attacker can actually reach and exploit it
- The misconfigurations that never get a CVE number
- What it would cost the business, ranked into what to fix first

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