Authenticated Privilege Escalation via Broken Access Control in HPE Networking Fabric Composer API
Privilege escalation vulnerabilities exist in the API of HPE Networking Fabric Composer. Successful exploitation could allow an authenticated low privilege operator user to complete state-changing actions that should not be allowed by their current level of authorization on the platform, including changes to the configuration of systems managed by the affected product.
Noroxi analysis
No Noroxi analysis for this record yet
We don't hand-write analysis for the hundreds of thousands of vulnerabilities in the database; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.
We use this product, ask for help- Published
- Sep 1, 2026
- Updated
- Sep 2, 2026
- EPSS
- 0.3% · 25th percentile
- CWE
- CWE-863
Sign in to follow · You’ll be notified if a followed record enters KEV, gets an exploit or is updated.
Report tools
Action score
34
Monitor
Low priority for now.
- CVSS
- 34 / 40 · 8.5 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 0 / 30 · 0.3%
CISA SSVC decision
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
Vulnrichment: CISA's decision-tree inputs.
CNA vs NVD score
- NVD
- —
- CNA · hpe
- 8.5
- 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
| Vendor | Product | CPE |
|---|---|---|
| arubanetworks | fabric composer | cpe:2.3:a:arubanetworks:fabric_composer |
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- arubanetworks fabric composerbefore 7.3.4
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) Fabric Composer
- 7.0.0 and later · up to and including 7.3.3affected · semver
Same product
arubanetworks: all recordsOther highest-scoring records for the same primary product.
- CVE-2026-76658Unauthenticated Remote Code Execution in HPE Networking Fabric Composer SSH Daemon40Plan
- CVE-2026-76657Authentication Bypass in HPE Networking Fabric Composer API allows Administrative Access40Plan
- CVE-2026-19766Authentication Bypass leads to Administrative control of adjacent network hosts in HPE Networking Fabric Composer38Monitor
- CVE-2026-73701Unauthenticated Remote Code Execution in HPE Networking Fabric Composer36Monitor
- CVE-2026-73700Authenticated Stored Cross-Site Scripting Vulnerability (XSS) in HPE Networking Fabric Composer Web-Based Management Interface36Monitor
- CVE-2026-73705Authenticated Arbitrary File Write leads to Remote Code Execution in HPE Networking Fabric Composer35Monitor
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.
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 researchersFinders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.
- internal security researchHPE Networking.reporter
Variant candidates
Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.
- CVE-2026-737020 days apartAuthenticated Privilege Escalation Vulnerability in the API of HPE Networking Fabric Composer35Monitor
- CVE-2026-737080 days apartFault in Business Logic allows Authenticated Sensitive Information Disclosure in HPE Networking Fabric Composer33Monitor
- CVE-2026-737230 days apartAuthenticated Privilege Escalation Leading to Unauthorized State Changes in HPE Networking Fabric Composer Web-Based Management Interface28Monitor
- CVE-2026-737240 days apartAuthenticated Privilege Escalation via Broken Access Control in HPE Networking Fabric Composer28Monitor
- CVE-2026-737270 days apartAuthenticated Sensitive Information Disclosure in HPE Networking Fabric Composer API26Monitor
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
No known public program.
Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).
Technical details
Attack conditions
- Anyone who can reach it over the internet can trigger it.
- A low-privileged account is enough.
- No user action is required.
- No special conditions are required; it is repeatable.
If successful
- Confidentiality
- none
- Integrity
- high · data or configuration can be modified
- Availability
- low · the service can be disrupted
Impact can extend beyond the vulnerable component (scope changes).
- Attack vector
- Network
- Attack complexity
- Low
- Privileges required
- Low
- User interaction
- None
- Scope
- Changed
- Confidentiality impact
- None
- Integrity impact
- High
- Availability impact
- Low
Weakness class (CWE)
CWE-863 · Incorrect AuthorizationCVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:L
nvd-secondary
Attack context
MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.
MITRE has no CAPEC/ATT&CK mapping for this CWE.
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.