CVE-2020-10603Network attack vector

Remote code execution via unsanitized backup filename

Published Apr 9, 2020 · Updated Aug 4, 2024

OS command injection in Advantech WebAccess/NMS before 3.0.2 allows remote attackers to execute arbitrary code through ManualDBBackup. The ManualDBBackup endpoint passes the user-controlled filenamebknow value to a system call without validation. Authentication is nominally required but bypassable, and successful exploitation runs attacker-supplied code as SYSTEM.

CVSS severity8.8
High
EPSS probability1.22%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

OS command injection in Advantech WebAccess/NMS before 3.0.2 allows remote attackers to execute arbitrary code through ManualDBBackup. The ManualDBBackup endpoint passes the user-controlled filenamebknow value to a system call without validation. Authentication is nominally required but bypassable, and successful exploitation runs attacker-supplied code as SYSTEM.

The record

CVE
CVE-2020-10603
Published
Apr 9, 2020
Updated
Aug 4, 2024
Vendor
Advantech
Product
WebAccess/NMS
Classifications
CWE-78, T1059
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 9, 2020CVE 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=Versions prior to 3.0.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Advantech · WebAccess/NMSversion=Versions prior to 3.0.2

Published CVSS scores

6.5NIST NVDAV:N/AC:L/Au:S/C:P/I:P/A:P
8.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
T1059Command and Scripting Interpreter

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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