CVE-2020-7858Network attack vector

Host-file disclosure via localhost path traversal

Published Apr 22, 2021 · Updated Aug 4, 2024

Path traversal in CDNetworks Aqua nPlayer 2.0.0.92 allows remote authenticated users to read host files through its localhost download URL. The localhost download URL accepts dot-dot path segments and resolves them outside the intended content directory. Exploitation requires access to the loopback service and user interaction, and the reported consequence is host-file disclosure only.

CVSS severity6.8
Medium
EPSS probability1.06%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Path traversal in CDNetworks Aqua nPlayer 2.0.0.92 allows remote authenticated users to read host files through its localhost download URL. The localhost download URL accepts dot-dot path segments and resolves them outside the intended content directory. Exploitation requires access to the loopback service and user interaction, and the reported consequence is host-file disclosure only.

The record

CVE
CVE-2020-7858
Published
Apr 22, 2021
Updated
Aug 4, 2024
Vendor
CDNetworks
Product
Aqua nPlayer
Classifications
CWE-548, CWE-22, T1005
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 22, 2021CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=2.0.0.92 <=2.0.0.92

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

CDNetworks · Aqua nPlayerversion=2.0.0.92 <=2.0.0.92

Published CVSS scores

6.8KrCERT/CCCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:N/A:N
8.6NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N
5.0NIST NVDAV:N/AC:L/Au:N/C:P/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-548Exposure of Information Through Directory Listing
CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
T1005Data from Local System

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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