Improper Client Address Validation allows Request Attribution Spoofing in Fabric Composer API Endpoint

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-73742
StatePUBLISHED
Assignerhpe
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-09-01 20:17:21 UTC
Updated2026-09-01 21:18:40 UTC
DescriptionA vulnerability in an API endpoint of HPE Networking Fabric Composer could allow an authenticated low privilege operator user to spoof the source address attributed to their requests. Successful exploitation could allow an attacker to cause inaccurate attribution information to be recorded on the affected system.

Risk And Classification

Primary CVSS: v3.1 4.3 MEDIUM from [email protected]

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

EPSS: 0.001520000 probability, percentile 0.046760000 (date 2026-09-02)

Problem Types: CWE-290 | CWE-290 CWE-290 Authentication Bypass by Spoofing

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary4.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
3.1CNACVSS4.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

CVSS v3.1 Breakdown

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

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Hewlett Packard Enterprise HPE Fabric Composer affected 7.0.0 7.3.3 semver Not specified

References

ReferenceSourceLinkTags
support.hpe.com/hpesc/public/docDisplay [email protected] support.hpe.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: This vulnerability was discovered by internal security research at HPE Networking. (en)

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