CVE-2023-32540

Name: CVE-2023-32540
Creator: NVD / NIST
Published: 2023-06-06T00:15:10.067+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 0.90%

Last modified Jun 17, 2026

CVE-2023-32540 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. 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. . EPSS estimates a 0.90% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

9.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

0.90%

55.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-94

Affected Software

Vendor	Product	Versions
Advantech	Webaccess\/Scada	<= 9.1.3

References

https://www.cisa.gov/news-events/ics-advisories/icsa-23-152-01Mitigation, Third Party Advisory, US Government Resource
https://www.cisa.gov/news-events/ics-advisories/icsa-23-152-01Mitigation, Third Party Advisory, US Government Resource

Timeline

Published: Jun 6, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-32540?

How severe is CVE-2023-32540?

CVE-2023-32540 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 0.90% probability of exploitation in the next 30 days.

How do I fix CVE-2023-32540?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-32540?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST