CVE-2022-39059Network attack vector

Arbitrary file read via path traversal

Published Jan 31, 2023 · Updated Mar 27, 2025

Path traversal in CHANGING Information Technology MegaServiSignAdapter 1.0.17.0823 allows remote attackers to read arbitrary system files. The file-reading function accepts an attacker-controlled path parameter without restricting traversal outside its intended directory. No authentication or user interaction is required, and the documented consequence is read-only disclosure of files accessible to the component.

CVSS severity7.5
High
EPSS probability1.00%
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 CHANGING Information Technology MegaServiSignAdapter 1.0.17.0823 allows remote attackers to read arbitrary system files. The file-reading function accepts an attacker-controlled path parameter without restricting traversal outside its intended directory. No authentication or user interaction is required, and the documented consequence is read-only disclosure of files accessible to the component.

The record

CVE
CVE-2022-39059
Published
Jan 31, 2023
Updated
Mar 27, 2025
Vendor
CHANGING Information Technology
Product
MegaServiSignAdapter
Classifications
CWE-22, T1005
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 31, 2023CVE publishedPublication date reported by the CVE source.
  2. Mar 27, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

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  1. Affected versionversion=1.0.17.0823

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

CHANGING Information Technology · MegaServiSignAdapterversion=1.0.17.0823

Published CVSS scores

7.5NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
7.5TWCERT/CCCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

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.

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Technologies

Your stack

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Your stack

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