Review reviewHigh

CVE-2026-4027

Flexera FlexNet Manager Suite

A security vulnerability has been identified in FlexNet Manager Suite 2025 R1 and R2 that could allow unauthorized access to attachment files due to insufficient access control.

CVSS
7.1
EPSS
0.35%
27.7% percentile
CISA KEV
Not listed
Published
2026.06.19
PRIORITY ASSESSMENT

Review review

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV
Exploit probability0.35%
Technical severityCVSS 7.1

Vulnerability overview

A security vulnerability has been identified in FlexNet Manager Suite 2025 R1 and R2 that could allow unauthorized access to attachment files due to insufficient access control.

Affected product and versions

Product
Flexera FlexNet Manager Suite
Affected versions
2025 R1
Fixed versions
No verified fixed-version field is available yet

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide
  1. 1
    Identify

    Confirm that Flexera FlexNet Manager Suite and an affected version are present.

  2. 2
    Prioritize

    Combine exploitation signals with asset exposure and business criticality.

  3. 3
    Remediate

    Follow the vendor advisory or supported update path and preserve rollback options.

  4. 4
    Verify

    Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/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
CWE
CWE-284
CVE-2026-4027 — Flexera FlexNet Manager Suite | SECUFOCUS NOW