CVE-2023-2866

Name: CVE-2023-2866
Creator: NVD / NIST
Published: 2023-06-07T21:15:13.277+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.8/10EPSS 0.14%

Last modified Jun 17, 2026

CVE-2023-2866 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. If an attacker can trick an authenticated user into loading a maliciously crafted .zip file onto Advantech WebAccess version 8.4.5, a web shell could be used to give the attacker full control of the SCADA server. . EPSS estimates a 0.14% chance of exploitation in the next 30 days.

Description

If an attacker can trick an authenticated user into loading a maliciously crafted .zip file onto Advantech WebAccess version 8.4.5, a web shell could be used to give the attacker full control of the SCADA server.

Metrics

CVSS 3.1

7.8/10

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

EPSS Probability

0.14%

3.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Advantech	Webaccess	8.4.5

References

https://www.cisa.gov/news-events/ics-advisories/icsa-23-150-01Third Party Advisory, US Government Resource
https://www.cisa.gov/news-events/ics-advisories/icsa-23-150-01Third Party Advisory, US Government Resource

Timeline

Published: Jun 7, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-2866?

How severe is CVE-2023-2866?

CVE-2023-2866 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 0.14% probability of exploitation in the next 30 days.

How do I fix CVE-2023-2866?

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-2023-2866?

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

Scan your code now

Source: NVD / NIST