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CVE-2023-2866

Advantech WebAccess Insufficient Type Distinction

High7.3EPSS 0.14%
Published
Updated
Reserved
Assigned by
icscert

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.

Timeline

  1. ID reserved

    By icscert

  2. · 14 days later

    Published

  3. · 20 months later

    Record updated

Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.

Scores

CVSS scores of CVE-2023-2866, by who scored it
Scored byCVSSScoreVector
icscertCNA (assigner)3.1High7.3CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
NVDNVD · Modified3.1High7.8CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS (exploitation in 30 days)
0.14% · top 96% of all CVEs (7 Nov 2026)
CISA SSVC
Exploitation: none · Automatable: no · Technical impact: total
Loading the EPSS history…

The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.3.

Weakness

Affected products

What to do

Solution: Advantech released a new version V9.1.4 https://www.advantech.com/en/support/details/installation  to address the problem by not including these files.

Workaround: Advantech recommends users locate and delete the “WADashboardSetup.msi” file to avoid this issue. If users wish to remedy this problem in version 8.4.5, they can uninstall "WebAccess Dashboard" from the control panel. Delete all the files: \Inetpub\wwwroot\broadweb\WADashboard \WebAccess\Node\WADashboardSetup.msi

References (1)

Sources

The same CVE in the primary databases and aggregators, to check against.

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Record last updated .