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CVE-2026-110390— FlexNet Beacon Missing Authentication Vulnerability

Quick assessment

Affected
Flexera FlexNet Beacon
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.

Flexera One 和 FlexNet Manager Suite 中的 FlexNet Beacon 组件存在身份验证缺失漏洞。当匿名 Web 服务器访问功能被启用（此为默认设置）时，未经身份验证的远程攻击者可利用该漏洞获取 Beacon 策略及目标信息。

CVSS 6.9 · Medium
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I. Basic Information for CVE-2026-110390

Vulnerability Information
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Vulnerability Title
FlexNet Beacon Missing Authentication Vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
Missing authentication in the FlexNet Beacon component of Flexera One and FlexNet Manager Suite allows unauthenticated remote attackers to obtain Beacon policy and targeting information when anonymous web server access is enabled (the default).
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
关键功能的认证机制缺失
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Flexera FlexNet Beacon 0 ~ 26.4.1 -
Flexera FlexNet Manager Suite 2026 R1 ~ 2026 R2 -

II. Public POCs for CVE-2026-110390

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III. Intelligence Information for CVE-2026-110390

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Other References for CVE-2026-110390 (2)

IV. Related Vulnerabilities

Same vendor: Flexera
Same weakness: CWE-306