CVE-2016-20104

Exploitation

Public exploit code exists. CISA's assessment records a public proof of concept. That is not a report of exploitation in the wild.

SSVC decision

• ExploitationpocPublic proof-of-concept exploit code exists. Not a report of exploitation in the wild.
• AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
• Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.61% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 49.0% of scored records. A rank, not a probability.

NVD base score

8.7 (CVSS v4.0), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

NVD analysis status

Deferred. NVD last modified this record on 2026-10-23.

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2026-10-20 20:31Z8 DAYS AGO

Last updated

2026-10-23 15:15Z5 DAYS AGO

Reserved

2026-10-14

Assigning CNA

VulnCheck

Record state

PUBLISHED

Severity

High (CVSS 8.7)

CNA CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

Weaknesses

• CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')Base

Data version

5.2

Document digest

b0716d343b76e41fe30d7ac79ade900a024a4a93c0da1f50189cc0bbfe548e7b

• www.zeroscience.mkZero Science Lab Advisory (ZSL-2016-5356)https://www.zeroscience.mk/advisories/ZSL-2016-5356.htmlthird-party-advisory
• www.exploit-db.comEDB-40227https://www.exploit-db.com/exploits/40227exploit
• packetstorm.newsPacket Storm 138274https://packetstorm.news/files/id/138274/exploit
• github.comNuclei Templatehttps://github.com/projectdiscovery/nuclei-templates/blob/main/http/vulnerabilities/other/eyelock-nano-lfd.yamltechnical-description
• www.vulncheck.comVulnCheck Advisory: EyeLock nano NXT 3.05.1193 Path Traversal via logdownload.phphttps://www.vulncheck.com/advisories/eyelock-nano-nxt-3.05.1193-path-traversal-via-logdownload-phpthird-party-advisory