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CVE-2026-73752· NVD / CVE Program· CNA hpe

Unauthenticated Arbitrary File Write Vulnerability Leads to Remote Code Execution in AOS-CX

An unauthenticated arbitrary file write vulnerability exists in an API endpoint of AOS-CX. Successful exploitation of this vulnerability allows an attacker to write arbitrary files to the underlying operating system, which could lead to remote code execution.

HighCVSS 8.8 · v3.1—No exploit No fix recorded

Noroxi analysis

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Published
Sep 1, 2026
Updated
Sep 22, 2026
EPSS
0.5% · 38th percentile
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Report tools

JSON

Action score

35

Monitor

Low priority for now.

CVSS
35 / 40 · 8.8 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.5%

CISA SSVC decision

Exploitation
none
Automatable
no
Technical impact
total

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
—
CNA · hpe
8.8
NVD has not scored this yet; the score shown is the CNA’s.

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Affected systems

VendorProduct
hpearubaos-cx
hpearuba cx 10000-48y6c \(r8p13a\)
hpearuba cx 10000-48y6c \(r8p14a\)
hpearuba cx 10000-48y6c \(s0f98a\)
hpearuba cx 10040 \(s4r58a\)
hpearuba cx 10040 32p \(s4r54a\)
hpearuba cx 10040 32p \(s4r55a\)
hpearuba cx 10040 32p \(s4r56a\)
hpearuba cx 4100i 12-port \(jl817a\)
hpearuba cx 4100i 24-port \(jl818a\)
hpearuba cx 6000 12g \(r8n89a\)
hpearuba cx 6000 12p \(r8n89b\)

and 144 more

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • hpe arubaos-cxbefore 10.10.1181
  • hpe arubaos-cx10.13.0000 and later · before 10.13.1190
  • hpe arubaos-cx10.16.0000 and later · before 10.16.1060
  • hpe arubaos-cx10.17.0000 and later · before 10.17.1030
  • hpe arubaos-cx10.18.0001

Versions reported by the vendor

Affected version ranges reported by the assigning authority (hpe). Independent of NVD's CPE analysis and usually ahead of it.

  • Hewlett Packard Enterprise (HPE) AOS-CX

    • 10.18.0000 and later · up to and including 10.18.0001affected · semver
    • 10.17.0000 and later · up to and including 10.17.1021affected · semver
    • 10.16.0000 and later · up to and including 10.16.1051affected · semver
    • 10.13.0000 and later · up to and including 10.13.1180affected · semver
    • 10.10.0000 and later · up to and including 10.10.1180affected · semver

Same product

hpe: all records

Other highest-scoring records for the same primary product.

  • CVE-2026-73778Credential Manager Vulnerability Allows Unauthorized Administrative Access
    39Monitor
  • CVE-2026-73749Unauthenticated Buffer Overflow Vulnerabilities lead to Remote Code Execution in AOS-CX
    39Monitor
  • CVE-2026-23813Authentication Bypass in Web Interface allows Unauthenticated Admin Password Reset
    39Monitor
  • CVE-2021-41001An authenticated remote code execution vulnerability was discovered in the AOS-CX Network Analytics Engine (NAE) in Aruba CX 6200F Switch Se
    36Monitor
  • CVE-2021-41000Multiple authenticated remote code execution vulnerabilities were discovered in the AOS-CX command line interface in Aruba CX 6200F Switch S
    36Monitor
  • CVE-2026-73782Unauthenticated Format String Vulnerability leads to Remote Code Execution in AOS-CX
    35Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

No fix version is recorded for this entry. Check the references for vendor advisories.

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

  • CVE-2026-737650 days apartAuthenticated Path Traversal Vulnerabilities Lead to Remote Code Execution in AOS-CX
    28Monitor
  • CVE-2026-6345442 days apartAuthenticated Path Traversal Vulnerability Leads to Remote Code Execution in AOS-CX
    28Monitor
  • CVE-2026-737600 days apartAuthenticated Path Traversal Vulnerability Leads to Remote Unauthorized Access to Files in AOS-CX
    26Monitor

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

The product’s vendor appears in a public program. Matched by name; verify the scope text in the program.

Technical details

Attack conditions

  • Someone on the same network segment can trigger it.
  • No account or password is required.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
high · data can be read
Integrity
high · data or configuration can be modified
Availability
high · the service can be disrupted
Attack vector
Adjacent
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality impact
High
Integrity impact
High
Availability impact
High

Weakness class (CWE)

CWE-22 · Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

CVSS vector

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

nvd-secondary

Root cause

A user-supplied file name is joined with the allowed directory, but the result is never checked to confirm it is still inside that directory.

The bug in code

The whole CWE-22 class

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

Vulnerable

ts
const file = path.join(ROOT, req.query.name);res.sendFile(file);

Fixed

ts
const file = path.resolve(ROOT, req.query.name);if (!file.startsWith(ROOT + path.sep)) {  return res.sendStatus(400);}res.sendFile(file);

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

ATT&CK techniques

—

Change log

No changes recorded on tracked fields yet. Score, KEV, exploit maturity and fix status changes appear here.

References

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records