Is CVE-2023-32540 actively exploited?

No active exploitation of CVE-2023-32540 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2023-32540 be exploited remotely?

Yes. CVE-2023-32540 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2023-32540?

CVE-2023-32540 has a CVSS score of 9.8 (CRITICAL).

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CRITICAL

CVE-2023-32540

CWE-94Published: June 6, 2023· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official Description

In Advantech WebAccss/SCADA v9.1.3 and prior, there is an arbitrary file overwrite vulnerability, which could allow an attacker to overwrite any file in the operating system (including system files), inject code into an XLS file, and modify the file extension, which could lead to arbitrary code execution.

NVD Source

Technical Analysis

CVE-2023-32540 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.