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CVE-2026-100902— Barco ClickShare CX-20 Gen2 Wallpaper Upload wallpaper denial of service

Quick assessment

Affected
Barco ClickShare CX-20 Gen2
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

在 Barco ClickShare CX-20 Gen2 版本 02.26.00.0007 及更早版本中发现了一个漏洞。该漏洞影响“壁纸上传”（Wallpaper Upload）组件中的 /wallpaper 文件的某些未知功能。对参数 wallpaper 的操纵会导致拒绝服务（Denial of Service）攻击。该漏洞可被远程发起利用。此漏洞的利用代码已被公开披露，并可能被恶意利用。供应商早在披露前就被联系过，但对此未作出任何回应。

CVSS 6.5 · Medium

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2026-100902

Vulnerability Information
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Vulnerability Title
Barco ClickShare CX-20 Gen2 Wallpaper Upload wallpaper denial of service
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability was determined in Barco ClickShare CX-20 Gen2 up to 02.26.00.0007. Affected by this issue is some unknown functionality of the file /wallpaper of the component Wallpaper Upload. This manipulation of the argument wallpaper causes denial of service. The attack can be initiated remotely. The exploit has been publicly disclosed and may be utilized. The vendor was contacted early about this disclosure but did not respond in any way.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
不恰当的资源关闭或释放
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Barco ClickShare CX-20 Gen2 02.26.00.0007 cpe:2.3:a:barco:clickshare_cx-20_gen2:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-100902

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III. Intelligence Information for CVE-2026-100902

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Proof of Concept for CVE-2026-100902 (1)

IV. Related Vulnerabilities

Same weakness: CWE-404

V. Comments for CVE-2026-100902

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