Skip to content
Fencer Intel
medium 6.9

CVE-2026-110390 json

FlexNet Beacon Missing Authentication Vulnerability

published 4d ago modified 4d ago also EUVD-2026-117872

cvss
6.9
version 4.0, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.4%
EPSS 0.4% chance of exploitation in 30 days, percentile 35%
public exploits
0
none known

Summary

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).

Patch / fix

  • Flexera FlexNet Beacon 26.4.1
  • Flexera FlexNet Manager Suite 2025 R1, 2025 R1 IOK-2107311, 2025 R2, 2025 R2 IOK-2107311, 2026 R1, 2026 R1 IOK-2107311, 2026 R2

Is CVE-2026-110390 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

Check with Fencer

Exploit prediction

0.41% chance of exploitation in the next 30 days, higher than 35% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
CNA 4.0 6.9 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
CNA 4.0 6.9 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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Affected products

  • Flexera FlexNet Beacon
  • Flexera FlexNet Manager Suite

Classification

Weakness
  • CWE-306 Missing Authentication for Critical Functionality
  • CWE-497 Exposure of Sensitive System Information to an Unauthorized Control Sphere

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.