CVE-2023-1437Network attack vector

Unauthenticated command execution via untrusted RPC pointers

Published Aug 2, 2023 · Updated Aug 2, 2024

Untrusted pointer dereference in Advantech WebAccess/SCADA before 9.1.4 allows remote attackers to execute commands through RPC. The built-in RPC server accepts client-supplied raw memory pointers as arguments and dereferences them as-is. No authentication or user interaction is required; successful exploitation grants remote file-system access, command execution, and file overwrite.

CVSS severity9.8
Critical
EPSS probability2.80%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Untrusted pointer dereference in Advantech WebAccess/SCADA before 9.1.4 allows remote attackers to execute commands through RPC. The built-in RPC server accepts client-supplied raw memory pointers as arguments and dereferences them as-is. No authentication or user interaction is required; successful exploitation grants remote file-system access, command execution, and file overwrite.

The record

CVE
CVE-2023-1437
Published
Aug 2, 2023
Updated
Aug 2, 2024
Vendor
Advantech
Product
WebAccess/SCADA
Classifications
CWE-822, CAPEC-129, T1059
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 2, 2023CVE publishedPublication date reported by the CVE source.
  2. Aug 2, 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 <9.1.4

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Advantech · WebAccess/SCADAversion=0 <9.1.4

Published CVSS scores

9.8ICS-CERTCVSS:3.1/AV:N/AC:L/PR:N/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.

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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

CWE-822Untrusted Pointer Dereference
CAPEC-129Pointer Manipulation
T1059Command and Scripting Interpreter

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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