How severe is CVE-2026-73708?

CVE-2026-73708 has a CVSS 3.x base score of 8.3, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability low.

Is CVE-2026-73708 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (35th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-73708?

CVE-2026-73708 affects Arubanetworks Fabric Composer. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-73708?

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-2026-73708 published?

CVE-2026-73708 was published on 2026-09-01 and last updated on 2026-09-02.

CVE-2026-73708

CVE-2026-73708 is a high-severity vulnerability in Arubanetworks Fabric Composer with a CVSS 3.x base score of 8.3. 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-863.

Key facts

Severity: High (CVSS 3.x base score 8.3)
EPSS exploit prediction: 0% (35th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-863
Affected product: Arubanetworks Fabric Composer
Published: 2026-09-01
Last modified: 2026-09-02

Description

A business logic vulnerability exists in the API of HPE Networking Fabric Composer. Successful exploitation could allow an authenticated low privilege operator user to obtain elevated privileges and modify settings beyond what is authorized by the user's existing privilege level on a vulnerable system.

Frequently asked questions

What is CVE-2026-73708?: A business logic vulnerability exists in the API of HPE Networking Fabric Composer. Successful exploitation could allow an authenticated low privilege operator user to obtain elevated privileges and modify settings beyond what is authorized by the user's existing privilege level on a vulnerable system.
How severe is CVE-2026-73708?: CVE-2026-73708 has a CVSS 3.x base score of 8.3, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability low.
Is CVE-2026-73708 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (35th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-73708?: CVE-2026-73708 affects Arubanetworks Fabric Composer. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-73708?: 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-2026-73708 published?: CVE-2026-73708 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:*:*:*:*:*:*:*:*

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