CVE-2020-7861

Arbitrary file execution via traversal in file copying

Published Apr 22, 2021 · Updated Aug 4, 2024

Path traversal in Koino AnySupport 2019.3.21.0 and earlier allows attackers to execute files copied from a management PC. KoinoFTServerDLL.dll uses swprintf during management-to-client file copying without restricting traversal outside the intended destination. The operation requires a management-PC file transfer and user interaction; KrCERT does not identify CDNetworks AquaNPlayer as affected.

CVSS severity8.4
High
EPSS probability1.45%
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 Koino AnySupport 2019.3.21.0 and earlier allows attackers to execute files copied from a management PC. KoinoFTServerDLL.dll uses swprintf during management-to-client file copying without restricting traversal outside the intended destination. The operation requires a management-PC file transfer and user interaction; KrCERT does not identify CDNetworks AquaNPlayer as affected.

The record

CVE
CVE-2020-7861
Published
Apr 22, 2021
Updated
Aug 4, 2024
Vendor
CDNetworks
Product
AquaNPlayer
Classifications
CWE-23, CWE-22, T1105
Attack vector
adjacent
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=2019.3.21.0 <=2019.3.21.0

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesauthenticated

What is affected?

CDNetworks · AquaNPlayerversion=2019.3.21.0 <=2019.3.21.0

Published CVSS scores

9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
7.5NIST NVDAV:N/AC:L/Au:N/C:P/I:P/A:P
8.4KrCERT/CCCVSS:3.1/AV:A/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H

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)
Vectoradjacent
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-23Relative Path Traversal
CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
T1105Ingress Tool Transfer

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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