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HPE Fabric Composer CVE-2026-73743

| EUVDEUVD-2026-69470 LOW
Cleartext Transmission of Sensitive Information (CWE-319)
2026-09-01 hpe GHSA-w3fv-769w-7rv4
3.7
CVSS 3.1 · Vendor: hpe

Severity by source

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

Network-accessible management interface requires high-complexity on-path positioning; partial confidentiality impact only, no integrity or availability effect.

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

Primary rating from Vendor (hpe).

CVSS VectorVendor: hpe

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

Lifecycle Timeline

1
Analysis Generated
Sep 01, 2026 - 20:42 vuln.today

DescriptionCVE.org

A vulnerability in the web-based management interface of HPE Networking Fabric Composer could allow an unauthenticated remote attacker to gain insight into some data handled by the affected interface. A successful exploit could allow an attacker to gain access to some data in a cleartext format possibly exposing other network infrastructure to further compromise.

AnalysisAI

Unauthenticated remote information disclosure in HPE Networking Fabric Composer exposes cleartext data through the web-based management interface to network-positioned attackers. Exploitation demands high attack complexity (CVSS AC:H), constraining real-world risk despite the network-accessible, no-authentication vector. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
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Delivery
technique details hidden
Exploit
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Execution
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Impact
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Vulnerability AssessmentAI

Exploitation Exploitation requires the attacker to satisfy high attack complexity conditions (CVSS AC:H), most likely achieving an on-path or same-segment network position relative to the Fabric Composer web management interface - for example, being present on the management VLAN, performing ARP poisoning, or intercepting traffic between the interface and a network device. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment The CVSS 3.1 base score of 3.7 (Low) accurately reflects limited real-world impact: AC:H signals that exploitation is not trivial and likely requires specific network positioning such as an on-path or same-segment attacker, C:L limits the confidentiality exposure to partial data, and there is no integrity or availability impact. … 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 advisory at https://support.hpe.com/hpesc/public/docDisplay?docId=hpesbnw05133en_us&docLocale=en_US for patched version details and upgrade instructions; no exact fixed version number is derivable from the provided data, so the advisory is authoritative. … 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-2026-73743 vulnerability details – vuln.today

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