Medium severity · published Sep 1, 2026
CVE-2026-73728
Authenticated Denial of Service Vulnerabilities in HPE Networking Fabric Composer API
6.5
CVSS
0.4%
EPSS
No
On KEV
Description
Denial-of-service vulnerabilities exist in the API of HPE Networking Fabric Composer that could allow an authenticated low privilege operator user to cause a denial of service. Successful exploitation could allow an attacker to interrupt the normal operation of the affected service.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 36% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
FC
Fabric Composer · Hewlett Packard Enterprise (HPE)
7.0.0 through 7.3.3 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-73728
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-73728
Vendor Advisory
https://support.hpe.com/hpesc/public/docDisplay?docId=hpesbnw05133en_us&docLocale=en_US
More from Fabric Composer
10.0
CVE-2026-76658
Unauthenticated Remote Code Execution in HPE Networking Fabric Composer SSH Daemon
10.0
CVE-2026-76657
Authentication Bypass in HPE Networking Fabric Composer API allows Administrative Access
9.6
CVE-2026-19766
Authentication Bypass leads to Administrative control of adjacent network hosts in HPE Networking Fabric Composer
9.0
CVE-2026-73701
Unauthenticated Remote Code Execution in HPE Networking Fabric Composer
9.0
CVE-2026-73700
Authenticated Stored Cross-Site Scripting Vulnerability (XSS) in HPE Networking Fabric Composer Web-Based Management Interface