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HPE AOS-CX CVE-2026-73776

| EUVDEUVD-2026-69639 HIGH
Improper Verification of Cryptographic Signature (CWE-347)
2026-09-01 hpe GHSA-cpw3-5jq9-5gf5
7.9
CVSS 3.1 · Vendor: hpe
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Severity by source

Vendor (hpe) PRIMARY
7.9 HIGH
AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N
vuln.today AI
7.2 HIGH

Pre-conditions outside attacker control warrant AC:H over the reported AC:L; admin CLI access is PR:H; OS escape confirms S:C; no availability impact stated.

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

Primary rating from Vendor (hpe).

CVSS VectorVendor: hpe

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

Lifecycle Timeline

2
Analysis Generated
Sep 01, 2026 - 21:11 vuln.today
CVE Published
Sep 01, 2026 - 20:28 cve.org
HIGH 7.9

DescriptionCVE.org

A signature verification bypass vulnerability exists in the command line interface of AOS-CX. Successful exploitation could allow an authenticated malicious actor with administrative privileges to execute arbitrary code on the underlying operating system, when certain pre-conditions outside of the attacker’s control are met.

AnalysisAI

Signature verification bypass in the HPE AOS-CX command line interface allows an authenticated administrator to execute arbitrary code on the underlying operating system when unspecified environmental pre-conditions are satisfied. The CVSS Scope:Changed metric confirms that successful exploitation escapes the AOS-CX management boundary, granting high confidentiality and integrity access to the underlying host OS. …

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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 Exploitation requires: (1) an authenticated AOS-CX CLI session with administrative (high) privileges - PR:H in the CVSS vector confirms this requirement; (2) local access to the CLI, meaning physical console or an established SSH management session (AV:L - not directly network-reachable); and (3) 'certain pre-conditions outside of the attacker's control,' an unspecified system state or configuration that must be present for the signature bypass to succeed. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment At CVSS 7.9 (High), this vulnerability carries a meaningful score but is substantially constrained in practice. … 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 advisory at https://support.hpe.com/hpesc/public/docDisplay?docId=hpesbnw05134en_us&docLocale=en_US for available patches and specific fixed firmware versions; no exact fix version is identifiable from the available data. … Detailed patch versions, workarounds, and compensating controls in full report.

Recommended ActionAI

Within 24 hours, identify all HPE AOS-CX deployments and review administrator CLI usage logs for any suspicious activity; note that the advisory has not specified which AOS-CX versions are affected, so consult HPE documentation to determine scope within your organization. …

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CVE-2026-73776 vulnerability details – vuln.today

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