CVE-2026-73709

Unauthenticated Remote Code Execution during HPE Networking Fabric Composer Installation Process

HIGH
8.3
CVSS Score
Published: September 1, 2026 at 07:46 PM UTC
Updated: September 2, 2026 at 03:32 PM UTC
2 products affected across 2 vendorsFabric ComposerFabric Composer

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Severity
HIGH8.3
Exploit prediction
EPSS 0.3%
SSVC
No known exploit

Description

A vulnerability in the underlying operating system of HPE Networking Fabric Composer could allow an unauthenticated adjacent attacker to run arbitrary commands on the underlying host if certain preconditions outside of the attacker's control are met. Successful exploitation could allow an attacker to execute arbitrary commands on the underlying operating system.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 7.3.4
Affected range stops below 7.3.4, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

8.3HIGHhpe
Attack Vector
ADJACENT_NETWORK
Complexity
HIGH
Privileges
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-78CWE-77

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