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CVE-2026-110390

FlexNet Beacon Missing Authentication Vulnerability

Products / packages Flexera FlexNet Beacon · Flexera FlexNet Manager Suite

Published

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Severity and exploitation

Not in CISA KEV

KEV coverage does not rule out exploitation.

KEV checked 15/11/2026, 01:05:31 UTC
flexera · CVSS:4.0 · 6.9
Assessment vectorCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N

Severity

medium6.9

CVSS measures technical severity, not the likelihood of an attack.

Known exploitation

Not listed in the checked CISA KEV catalog

Absence from CISA KEV does not rule out attacks.

Public exploit

Not established by this record

Missing evidence does not mean no public exploit exists.

Remediation

Fix status not established

No structured fix or guidance is available here. Check the latest publisher advisory.

What this means

FlexNet Beacon and FlexNet Manager Suite have a missing authentication vulnerability, allowing unauthenticated remote attackers to obtain policy and targeting information when anonymous web server access is enabled. Affected versions include FlexNet Beacon before 26.4.1 and FlexNet Manager Suite before 2026 R2.

Summarized by @cf/meta/llama-3.3-70b-instruct-fp8-fast. Verify details against the original sources.

Attack conditions

No attack-condition excerpt has been identified here. Review the full source description and references for authentication, network access, and configuration requirements.

Review supporting sources →

Affected versions

Check the exact model, release, and any platform requirements against your installation.

Flexera · flexera

FlexNet Beacon

1 range
flexera version evidence
Platforms: Windows

Compare with this publisher’s ranges. This does not inspect your installation.

affected

0 → before 26.4.1

custom versions

unaffected

unknown

Other versions: unaffected

Flexera · flexera

FlexNet Manager Suite

4 ranges
flexera version evidence
Platforms: Windows

Compare with this publisher’s ranges. This does not inspect your installation.

affected

2026 R1 → before 2026 R2

custom versions

From 2026 R1 IOK-2107311: unaffected

2025 R2 → before 2026 R1

custom versions

From 2025 R2 IOK-2107311: unaffected

2025 R1 → before 2025 R2

custom versions

From 2025 R1 IOK-2107311: unaffected

0 → before 2025 R1

custom versions

unaffected

unknown

Other versions: unaffected

Automatic dependency matching is unavailable for this record. Use the product evidence and publisher’s instructions to check your installation.

What to do

Compare your installed product and version with the affected versions above. A matching product name alone does not confirm exposure.

No structured fix or remediation guidance is available here. Check the full source description and vendor’s latest advisory for a patch or workaround; do not assume another version is safe.

cve.new guidance unless attributed to a publisher. This page does not inspect your installation.

Public exploit evidence

No public exploit reference is identified in the imported evidence. This is not a claim that no exploit exists.

Original source description

Read the full publisher 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).

References

2 sources
community.flexera.com/s/article/Flexera-Beacon-Security-Advisory-CVE-2026-110390
Vendor advisoryflexera
community.flexera.com/s/article/Flexera-Beacon-security-hotfix-IOK-2107311
Patchflexera

Inside the record

Evidence available

Package identity · not supplied
Version evidence
Remediation guidance · not supplied
Weakness classification
Additional publishers

Describes the evidence in this view, not whether the product is safe.

Original records

CVE-2026-110390

View the latest unmodified CVE JSON from the official source. It may be newer than this imported page.

cve.new JSON →

Underlying weaknesses

The source’s classification of what caused the vulnerability.

CWE-306 ↗

CWE-306 Missing authentication for critical function

flexera

Related →
CWE-497 ↗

CWE-497 Exposure of sensitive system information to an unauthorized control sphere

flexera

Related →
Contributing organizations · 2
flexera

Assigning organization

2026-11-05
CISA-ADP

Additional data publisher

2026-11-10

Timeline

All times UTC

  1. Advisory published

    Publication date supplied by the source.

  2. Source updated

    Latest modification date supplied by the source.

  3. Last imported by cve.new

    Latest catalog import, not the date we first saw this advisory.

What changed

Follow changes
  1. CVE · CVE-2026-110390

    Observed 2026-11-10T14:10:53.424Z · upstream updated 2026-11-10T14:01:17.593Z

    Prioritization updated

    before

    []

    after

    [
  {
    "source": "CISA-ADP",
    "type": "SSVC",
    "role": "CISA Coordinator",
    "timestamp": "2026-11-10T14:01:05.369765Z",
    "decisions": [
      {
        "name": "Exploitation",
        "value": "none"
      },
      {
        "name": "Automatable",
        "value": "yes"
      },
      {
        "name": "Technical Impact",
        "value": "partial"
      }
    ]
  }
]

Large field values are marked as truncated previews. Original source snapshots remain retained.

Showing up to 50 most recent observed changes.