CVE-2022-46306Network attack vector

Arbitrary code execution via unfiltered DLL path

Published Jan 3, 2023 · Updated Apr 10, 2025

Path traversal in ChangingTec ServiSign allows remote attackers to execute arbitrary code through a malicious website visited by a user. The component inadequately filters special characters in a DLL file path, allowing a crafted web page to direct it to load an attacker-supplied library from an arbitrary location. No authentication is required, but a ServiSign user must access the hosted page; the loaded DLL can perform arbitrary system operations and interrupt the service.

CVSS severity8.8
High
EPSS probability0.92%
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 ChangingTec ServiSign allows remote attackers to execute arbitrary code through a malicious website visited by a user. The component inadequately filters special characters in a DLL file path, allowing a crafted web page to direct it to load an attacker-supplied library from an arbitrary location. No authentication is required, but a ServiSign user must access the hosted page; the loaded DLL can perform arbitrary system operations and interrupt the service.

The record

CVE
CVE-2022-46306
Published
Jan 3, 2023
Updated
Apr 10, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-22, T1204.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 3, 2023CVE publishedPublication date reported by the CVE source.
  2. Apr 10, 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?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

7.8NIST NVDCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
8.8TWCERT/CCCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/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)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
T1204.001Malicious Link

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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