CVE-2021-26581: HPE Superdome Flex Server Firmware

Medium severity, CVSS 6.5. EPSS: 0.8% chance of exploitation in the next 30 days.

A potential security vulnerability has been identified in HPE Superdome Flex server. A denial of service attack can be remotely exploited leaving hung connections to the BMC web interface. The monarch BMC must be rebooted to recover from this situation. Other BMC management is not impacted. HPE has made the following software update to resolve the vulnerability in HPE Superdome Flex Server: Superdome Flex Server Firmware 3.30.142 or later.

Affected products

• HPE Superdome Flex Server Firmware: before 3.30.142 (fixed in 3.30.142)

Published 2021-04-01. Last modified 2026-06-17.