How severe is CVE-2026-73727?

CVE-2026-73727 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2026-73727 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (26th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-73727?

CVE-2026-73727 affects Arubanetworks Fabric Composer. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-73727?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2026-73727 published?

CVE-2026-73727 was published on 2026-09-01 and last updated on 2026-09-02.

CVE-2026-73727

CVE-2026-73727 is a medium-severity vulnerability in Arubanetworks Fabric Composer with a CVSS 3.x base score of 6.5. 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: Medium (CVSS 3.x base score 6.5)
EPSS exploit prediction: 0% (26th 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

Vulnerabilities in the API of HPE Networking Fabric Composer could allow an authenticated low privilege operator user to access sensitive information. A successful exploit allows an attacker to access data beyond what is authorized by the user's existing privilege level, which could be used to potentially gain further access to network services supported by HPE Networking Fabric Composer.

Frequently asked questions

What is CVE-2026-73727?: Vulnerabilities in the API of HPE Networking Fabric Composer could allow an authenticated low privilege operator user to access sensitive information. A successful exploit allows an attacker to access data beyond what is authorized by the user's existing privilege level, which could be used to potentially gain further access to network services supported by HPE Networking Fabric Composer.
How severe is CVE-2026-73727?: CVE-2026-73727 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2026-73727 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (26th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-73727?: CVE-2026-73727 affects Arubanetworks Fabric Composer. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-73727?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2026-73727 published?: CVE-2026-73727 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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