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HPE Fabric Composer CVE-2026-73738

| EUVDEUVD-2026-69465 MEDIUM
Information Exposure (CWE-200)
2026-09-01 hpe GHSA-4x32-w753-pwww
4.7
CVSS 3.1 · Vendor: hpe
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Severity by source

Vendor (hpe) PRIMARY
4.7 MEDIUM
AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
vuln.today AI
4.7 MEDIUM

Local access required per description; operator credentials needed (PR:L); high complexity per vendor acknowledgment; confidentiality only impacted, no integrity or availability effect.

3.1 AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
4.0 AV:L/AC:H/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

Primary rating from Vendor (hpe).

CVSS VectorVendor: hpe

Attack Vector
Local
Attack Complexity
High
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None

Lifecycle Timeline

1
Analysis Generated
Sep 01, 2026 - 20:50 vuln.today

DescriptionCVE.org

A vulnerability in the underlying operating system of HPE Networking Fabric Composer could allow an authenticated low privilege operator user with local access to view sensitive information. Successful exploitation could allow an attacker to retrieve information which could be used to potentially gain further privileges on the affected system.

AnalysisAI

Local information disclosure in HPE Networking Fabric Composer allows an authenticated low-privileged operator user with local system access to read sensitive OS-level data, potentially enabling privilege escalation on the affected host. The vulnerability resides in the underlying operating system layer exposed through Fabric Composer's operator access model, and is constrained by both a local attack vector and high complexity requirement. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
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Delivery
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Exploit
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Execution
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Persist
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Impact
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Vulnerability AssessmentAI

Exploitation Exploitation requires three concurrent conditions: (1) the attacker must have authenticated local access to the Fabric Composer host as a low-privileged operator user - remote unauthenticated exploitation is not possible given AV:L/PR:L; (2) the high-complexity condition (AC:H) imposes an additional, vendor-unspecified prerequisite that makes exploitation non-trivial and not reliably reproducible without specific system state; (3) the vulnerability affects the underlying operating system layer, meaning Fabric Composer must be installed and running in its standard deployment configuration on that OS. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment The CVSS 4.7 medium rating is well-calibrated for this vulnerability. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario Full exploit scenario with step-by-step reproduction available after sign-in.
Remediation Apply the update documented in HPE Security Bulletin hpesbnw05133en_us, available at https://support.hpe.com/hpesc/public/docDisplay?docId=hpesbnw05133en_us&docLocale=en_US. … Detailed patch versions, workarounds, and compensating controls in full report.

Threat intelligence, references, and detailed analysis are available after sign-in.

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Privilege escalation in HPE Networking Fabric Composer's API allows an authenticated low-privilege operator user to elev

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Privilege escalation in HPE Networking Fabric Composer allows an authenticated low-privilege operator to gain full admin

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Stored cross-site scripting in the HPE Networking Fabric Composer web management interface allows an unauthenticated att

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Unauthenticated remote access to the HPE Networking Fabric Composer API allows attackers to read limited internal system

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CVE-2026-73738 vulnerability details – vuln.today

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