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Fabric Composer EUVDEUVD-2026-69476

| CVE-2026-76658 CRITICAL
Improper Authentication (CWE-287)
2026-09-01 hpe GHSA-p9f5-2p99-3r74
10.0
CVSS 3.1 · Vendor: hpe
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Severity by source

Vendor (hpe) PRIMARY
10.0 CRITICAL
AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
ENISA EUVD
HIGH
qualitative
vuln.today AI
10.0 CRITICAL

Unauthenticated network-facing SSH daemon yields low-complexity privileged RCE (PR:N/AC:L); compromise pivots from the SSH service to the underlying OS, justifying S:C and full C/I/A:H.

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

Primary rating from Vendor (hpe).

CVSS VectorVendor: hpe

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

Lifecycle Timeline

3
Metadata Corrected
Sep 01, 2026 - 20:40 vuln.today
tag: Information Disclosure removed
Analysis Generated
Sep 01, 2026 - 20:16 vuln.today
CVE Published
Sep 01, 2026 - 19:47 cve.org
CRITICAL 10.0

DescriptionCVE.org

A vulnerability has been identified in the SSH daemon of HPE Networking Fabric Composer that could allow an unauthenticated remote attacker to gain administrative access to vulnerable AFC hosts. Successful exploitation could allow an attacker to execute arbitrary commands as a privileged user on the underlying operating system leading to complete system compromise.

AnalysisAI

Remote code execution in HPE Networking (Aruba) Fabric Composer allows an unauthenticated attacker to reach the appliance's SSH daemon over the network and gain administrative access to vulnerable AFC hosts. Once in, the attacker can execute arbitrary commands as a privileged OS user, resulting in complete system compromise. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
technique details hidden
Delivery
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Exploit
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Execution
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Impact
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Vulnerability AssessmentAI

Exploitation Exploitation requires network reachability to the SSH daemon of an HPE Networking Fabric Composer (AFC) host; per CVSS PR:N/UI:N no authentication and no user interaction are needed against affected versions. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment This is a genuine top-priority issue rather than an inflated high-CVSS score: the vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H describes network-reachable, low-complexity, unauthenticated exploitation with no user interaction and full confidentiality/integrity/availability impact plus scope change - the textbook 10.0 profile, and it is internally consistent with the description of unauthenticated remote admin access via SSH. … 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 fixed release identified in HPE Security Bulletin hpesbnw05133en_us (https://support.hpe.com/hpesc/public/docDisplay?docId=hpesbnw05133en_us&docLocale=en_US); the input does not include an exact fixed version number, so treat this as patch available per vendor advisory and pull the precise target build from that bulletin before upgrading. … Detailed patch versions, workarounds, and compensating controls in full report.

Recommended ActionAI

Within 24 hours, identify all Fabric Composer appliances on your network and immediately restrict SSH access to management-only networks using firewall rules and network ACLs. …

Sign in for detailed remediation steps and compensating controls.

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

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EUVD-2026-69476 vulnerability details – vuln.today

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