How severe is CVE-2026-73711?

CVE-2026-73711 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-73711 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (39th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-73711?

CVE-2026-73711 affects Arubanetworks Fabric Composer. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-73711?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2026-73711 published?

CVE-2026-73711 was published on 2026-09-01 and last updated on 2026-09-02.

CVE-2026-73711

CVE-2026-73711 is a high-severity vulnerability in Arubanetworks Fabric Composer with a CVSS 3.x base score of 8.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-269.

Key facts

Severity: High (CVSS 3.x base score 8.1)
EPSS exploit prediction: 0% (39th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-269
Affected product: Arubanetworks Fabric Composer
Published: 2026-09-01
Last modified: 2026-09-02

Description

A privilege escalation vulnerability exists in the API endpoint of HPE Networking Fabric Composer. Successful exploitation could allow an unauthenticated remote attacker to gain administrative privileges leading to complete compromise of the HPE Networking Fabric Composer host.

Frequently asked questions

What is CVE-2026-73711?: A privilege escalation vulnerability exists in the API endpoint of HPE Networking Fabric Composer. Successful exploitation could allow an unauthenticated remote attacker to gain administrative privileges leading to complete compromise of the HPE Networking Fabric Composer host.
How severe is CVE-2026-73711?: CVE-2026-73711 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-73711 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (39th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-73711?: CVE-2026-73711 affects Arubanetworks Fabric Composer. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-73711?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2026-73711 published?: CVE-2026-73711 was published on 2026-09-01 and last updated on 2026-09-02.

References

https://support.hpe.com/hpesc/public/docDisplay?docId=hpesbnw05133en_us&docLocale=en_US

Affected products (1)

cpe:2.3:a:arubanetworks:fabric_composer:*:*:*:*:*:*:*:*

More vulnerabilities in Arubanetworks Fabric Composer

CVE-2026-76658 — Critical (CVSS 10.0): A vulnerability has been identified in the SSH daemon of HPE Networking Fabric Composer that could allow an…
CVE-2026-76657 — Critical (CVSS 10.0): Vulnerabilities have been identified in the API of HPE Networking Fabric Composer that could potentially allow an…
CVE-2026-19766 — Critical (CVSS 9.6): An authentication bypass vulnerability exists in the underlying operating system of HPE Networking Fabric Composer.…
CVE-2026-73701 — Critical (CVSS 9.0): An unauthenticated remote code execution vulnerability exists in the underlying operating system of HPE Networking…
CVE-2026-73700 — Critical (CVSS 9.0): A vulnerability in the web-based management interface of HPE Networking Fabric Composer could allow an authenticated…
CVE-2026-73705 — High (CVSS 8.8): An arbitrary file write vulnerability in the API of HPE Networking Fabric Composer could allow an authenticated low…

All CVEs affecting Arubanetworks Fabric Composer →

Other CWE-269 (Improper Privilege Management) vulnerabilities

CVE-2026-60366 — Critical (CVSS 10.0): Vulnerability in the Oracle Platform Security for Java product of Oracle Fusion Middleware (component: Centralized…
CVE-2026-31852 — Critical (CVSS 10.0): Jellyfin is an open-source media system. The code-quality.yml GitHub Actions workflow in jellyfin/jellyfin-ios is…
CVE-2025-20282 — Critical (CVSS 10.0): A vulnerability in an internal API of Cisco ISE and Cisco ISE-PIC could allow an unauthenticated, remote attacker to…
CVE-2025-0505 — Critical (CVSS 10.0): On Arista CloudVision systems (virtual or physical on-premise deployments), Zero Touch Provisioning can be used to gain…
CVE-2023-48418 — Critical (CVSS 10.0): In checkDebuggingDisallowed of DeviceVersionFragment.java, there is a possible way to access adb before SUW…
CVE-2023-48419 — Critical (CVSS 10.0): An attacker in the wifi vicinity of a target Google Home can spy on the victim, resulting in Elevation of Privilege

Browse all CWE-269 (Improper Privilege Management) vulnerabilities →