CVE-2020-3925Network attack vector

Remote code execution via unsafe LoadLibrary call

Published Feb 3, 2020 · Updated Sep 17, 2024

Remote code execution in CHANGING ServiSign Windows versions through 1.0.19.0617 allows remote attackers to run commands via crafted scripts. The advisory identifies a LoadLibrary call reached through a captured plugin interface but does not disclose the responsible function or its input validation. Exploitation requires user interaction with malicious script content; successful execution runs attacker-supplied commands on the Windows endpoint.

CVSS severity8.3
High
EPSS probability2.77%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Remote code execution in CHANGING ServiSign Windows versions through 1.0.19.0617 allows remote attackers to run commands via crafted scripts. The advisory identifies a LoadLibrary call reached through a captured plugin interface but does not disclose the responsible function or its input validation. Exploitation requires user interaction with malicious script content; successful execution runs attacker-supplied commands on the Windows endpoint.

The record

CVE
CVE-2020-3925
Published
Feb 3, 2020
Updated
Sep 17, 2024
Vendor
CHANGING Information Technology Inc.
Product
ServiSign
Classifications
T1203
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 3, 2020CVE publishedPublication date reported by the CVE source.
  2. Sep 17, 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=0 <=1.0.19.0617

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

CHANGING Information Technology Inc. · ServiSignversion=0 <=1.0.19.0617

Published CVSS scores

8.3TWCERT/CCCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H
9.3NIST NVDAV:N/AC:M/Au:N/C:C/I:C/A:C
8.8NIST NVDCVSS: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.

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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

T1203Exploitation for Client Execution

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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