How severe is CVE-2026-73736?

CVE-2026-73736 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2026-73736 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-2026-73736?

CVE-2026-73736 affects Arubanetworks Fabric Composer. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-73736?

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

When was CVE-2026-73736 published?

CVE-2026-73736 was published on 2026-09-01 and last updated on 2026-09-03.

CVE-2026-73736

CVE-2026-73736 is a medium-severity vulnerability in Arubanetworks Fabric Composer with a CVSS 3.x base score of 5.3. 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-552.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
EPSS exploit prediction: 0% (35th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-552
Affected product: Arubanetworks Fabric Composer
Published: 2026-09-01
Last modified: 2026-09-03

Description

A vulnerability in the web-based management interface of HPE Networking Fabric Composer could allow an unauthenticated remote attacker to view some system files. Successful exploitation could allow an attacker to read files within the affected directory.

Frequently asked questions

What is CVE-2026-73736?: A vulnerability in the web-based management interface of HPE Networking Fabric Composer could allow an unauthenticated remote attacker to view some system files. Successful exploitation could allow an attacker to read files within the affected directory.
How severe is CVE-2026-73736?: CVE-2026-73736 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2026-73736 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-2026-73736?: CVE-2026-73736 affects Arubanetworks Fabric Composer. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-73736?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2026-73736 published?: CVE-2026-73736 was published on 2026-09-01 and last updated on 2026-09-03.

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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