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HPE Fabric Composer CVE-2026-73737

| EUVDEUVD-2026-69464 MEDIUM
Path Traversal (CWE-22)
2026-09-01 hpe GHSA-wfx9-pm5m-wr75
4.8
CVSS 3.1 · Vendor: hpe
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Severity by source

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

Adjacent-only access and required user interaction with out-of-attacker-control preconditions justify AV:A/AC:H/UI:R; no credentials needed per description; only file write impact, no confidentiality or availability.

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

Primary rating from Vendor (hpe).

CVSS VectorVendor: hpe

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

Lifecycle Timeline

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

DescriptionCVE.org

An unauthenticated path traversal vulnerability exists in the API endpoint of HPE Networking Fabric Composer. Successful exploitation could allow an unauthenticated adjacent attacker to manipulate user generated files, potentially leading to unauthorized changes in critical system configurations, if certain preconditions outside of the attacker's control are met.

AnalysisAI

Path traversal in HPE Networking Fabric Composer's API endpoint allows an unauthenticated adjacent attacker to manipulate user-generated files and potentially alter critical system configurations. Exploitation is constrained by the AV:A vector (attacker must be on the same network segment), high attack complexity requiring preconditions outside the attacker's control, and mandatory user interaction - factors that collectively reduce the practical risk below the I:H integrity impact might suggest. …

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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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Impact
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Vulnerability AssessmentAI

Exploitation Attacker must be positioned on an adjacent network segment (same VLAN, broadcast domain, or directly routed management subnet) hosting the Fabric Composer API - internet-based exploitation is not possible given AV:A. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment The real-world risk is moderate-to-low despite the I:H integrity rating. … 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 or upgrade target - a specific fixed version is not confirmed in the available input 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-2026-73737 vulnerability details – vuln.today

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