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HPE Fabric Composer CVE-2026-73729

| EUVDEUVD-2026-69456 MEDIUM
Improper Privilege Management (CWE-269)
2026-09-01 hpe GHSA-vc3v-4q9p-r6gc
6.5
CVSS 3.1 · Vendor: hpe
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Severity by source

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

Local access and low privilege are explicitly required; scope change reflects OS-layer boundary crossing; no integrity or availability impact from read-only disclosure.

3.1 AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
4.0 AV:L/AC:L/AT:N/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
Low
Privileges Required
Low
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
None
Availability
None

Lifecycle Timeline

2
Metadata Corrected
Sep 01, 2026 - 21:40 vuln.today
tag: Authentication Bypass replaced by Information Disclosure
Analysis Generated
Sep 01, 2026 - 20:45 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 upstream AFC dependencies to view sensitive information. Successful exploitation could allow an attacker to access data beyond what is authorized by the user's existing privilege level, potentially leading to further unauthorized access.

AnalysisAI

Sensitive information exposure in HPE Networking Fabric Composer allows an authenticated low-privilege operator user with local access to upstream AFC dependencies to read data outside their authorized scope. The CVSS vector (S:C/C:H) reflects that the confidentiality breach crosses authorization boundaries within the underlying OS layer, not merely within the user's own privilege tier. …

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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: (1) an authenticated session as a low-privilege 'operator' role user within HPE Fabric Composer; (2) local access to the host system where AFC and its upstream dependencies reside - remote network-only access is insufficient per the AV:L vector. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment CVSS base score of 6.5 with vector AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N correctly captures the key risk dimensions: local access is mandatory (AV:L), authentication as a low-privilege operator is required (PR:L), and the scope change (S:C) with high confidentiality impact (C:H) elevates the score despite the local-only vector. … 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 Consult the HPE security bulletin at https://support.hpe.com/hpesc/public/docDisplay?docId=hpesbnw05133en_us&docLocale=en_US for the official patch and fixed version - no specific remediated version number is extractable from the provided intelligence data. … 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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CVE-2026-73729 vulnerability details – vuln.today

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