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HPE AOS-CX EUVDEUVD-2026-69619

| CVE-2026-73755 MEDIUM
Improper Privilege Management (CWE-269)
2026-09-01 hpe GHSA-qw37-mgh7-rpp7
5.7
CVSS 3.1 · Vendor: hpe
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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain

  1. Access
    Obtain operator credentials
  2. Delivery
    Authenticate to AOS-CX management API
  3. Exploit
    Trigger required user action
  4. Execution
    Send crafted API request to privileged endpoint
  5. Persist
    Bypass role-based access check
  6. Impact
    Exfiltrate sensitive configuration data

Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A06:2025 - Insecure Design
ASVS 5.0
V8 - Authorization Least privilege enforcement
MITRE ATT&CK

1 technique across 1 tactic: Privilege Escalation

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

Exploitation Conditions

Exploitation requires: (1) valid AOS-CX operator-level credentials - unauthenticated access is not possible per PR:L in the CVSS vector; (2) a required user action (UI:R) that must occur before or during exploitation - the exact nature of this action is not disclosed in the advisory or description; (3) network-level reachability to the AOS-CX management API (AV:N). What limits exploitation: the mandatory user interaction requirement prevents fully automated or drive-by attacks; the attacker must already hold an operator account, ruling out fully external threat actors without prior foothold; and impact is read-only (C:H/I:N/A:N), meaning an attacker cannot modify device configuration or disrupt operations through this vulnerability alone.

Impact

The CVSS 5.7 score (AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N) accurately reflects a medium-tier issue: network-reachable, low complexity, but gated by both authentication (operator credential required) and user interaction (some secondary action must be triggered). The UI:R requirement meaningfully depresses real-world risk - opportunistic mass exploitation is not feasible. Impact is confidentiality-only (C:H), with no integrity or availability consequence. No EPSS data, KEV listing, or public exploit was provided, and no public exploit has been identified at time of analysis. Within the hpesbnw05134 advisory bundle, this is the lowest-severity entry; defenders should triage it after the unauthenticated RCE (CVE-2026-73749, CVSS 9.8) and the adjacent format-string RCE (CVE-2026-73782, CVSS 8.8). The primary realistic threat scenario is a malicious insider or compromised operator account, not an external attacker.

Exploit ScenarioDerived

An internal network operator with valid low-privilege credentials authenticates to the AOS-CX management API and, after performing or inducing a specific required user action (the exact action is not disclosed in available data), issues a crafted API request to an endpoint that improperly bypasses role-based access checks. The operator retrieves sensitive configuration or credential data scoped to administrator-tier roles. No public exploit code has been identified at time of analysis, and the UI:R requirement limits opportunistic exploitation.

This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).
No patch listed yet 0.3% exploitation probability (EPSS)

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AnalysisAIv1 – Sep 01, 2026

Privilege escalation in HPE AOS-CX's API endpoint allows an authenticated low-privilege operator to access sensitive system information that should be restricted to higher-privilege roles, provided a required user action is completed. The CVSS vector (PR:L/UI:R/C:H/I:N/A:N) confirms this manifests as an information disclosure escalation rather than full privilege takeover - a low-privilege operator reads confidential data normally gated behind elevated roles. This CVE is part of the same HPE advisory (hpesbnw05134) as CVE-2026-73749 (unauthenticated RCE, CVSS 9.8), CVE-2026-73766 (admin command injection, CVSS 7.2), CVE-2026-73778 (default-credential auth bypass, CVSS 8.1), and CVE-2026-73782 (adjacent format-string RCE, CVSS 8.8); no public exploit has been identified at time of analysis.

RemediationAI

Consult the HPE security bulletin at https://support.hpe.com/hpesc/public/docDisplay?docId=hpesbnw05134en_us&docLocale=en_US for the specific patched AOS-CX firmware version - no exact fix version was provided in the available input data. As an interim compensating control, restrict API management-plane access to trusted management VLANs or out-of-band networks using ACLs, reducing the AV:N exposure to a more constrained access zone. Audit and minimize operator-role account provisioning, ensuring only accounts with operational need have credentials on the device. Given this CVE shares an advisory with higher-severity issues (including an unauthenticated RCE), patching the full hpesbnw05134 advisory bundle should be treated as a single maintenance event rather than triaged individually.

Affected VersionsENISA

AOS-CX 10.17.0000 ≤10.17.1021
AOS-CX 10.16.0000 ≤10.16.1051
AOS-CX 10.18.0000 ≤10.18.0001
AOS-CX 10.13.0000 ≤10.13.1180
AOS-CX 10.10.0000 ≤10.10.1180

Affected Packages

euvd aos_cx no fix

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 1 package in euvd

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

AOS-CX is HPE's modern network operating system for the Aruba CX switch portfolio, exposing a REST/gRPC API for management plane operations. The vulnerability resides in API endpoint access control, where role-based permission checks for operator-tier accounts are insufficiently enforced, permitting read access to resources scoped to higher-privilege roles (administrator or manager). The CPE cpe:2.3:a:hewlett_packard_enterprise_(hpe):aos-cx:*:*:*:*:*:*:*:* spans all versions across the software application facet. No CWE root-cause class was assigned by the reporter, but the behavioral pattern maps to CWE-285 (Improper Authorization) or CWE-269 (Improper Privilege Management) - an authorization boundary failure rather than a memory-safety or injection flaw.

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Severity by source

Vendor (hpe) PRIMARY 5.7 MEDIUM
AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N
vuln.today AI 5.7 MEDIUM

Network API, low-privilege operator required (PR:L), user interaction mandatory (UI:R); impact is confidentiality-only with no integrity or availability consequence.

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

Primary rating from Vendor (hpe).

CVSS VectorVendor: hpe

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

DescriptionCVE.org

A privilege escalation vulnerability exists in the API endpoint of AOS-CX. Successful exploitation could allow an authenticated low-privilege operator user, after a required user action, to access sensitive information from the vulnerable system.

Threat Intelligence Overview

EPSS Score
0.3%
Top 83% exploitable
Prevalence
Medium
enterprise network switch OS, HPE Aruba CX deployed in mid-to-large enterprise networks
Data Quality
5 sources
Confidence: Medium

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity MEDIUM
CISA KEV No
Public POC No
EPSS 0.3%
Patch available No
Active threat No
Deciding rule
MEDIUM severity (CVSS 4.0-6.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Scheduled
Exploitation
None
System Exposure· derived
Open
Automatable
No
Human Impact· derived
Medium
Technical Impact
Partial

Priority Score

28
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +28
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Privilege escalation occurs when an attacker leverages flaws in access control mechanisms to gain permissions beyond what they were originally granted.

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