A potential security vulnerability has been identified in HPE Superdome Flex server.

published 2021-04-01 5y ago modified 2026-06-17 4mo ago also EUVD-2021-13379

cvss: 6.5; version 3.1, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 0.9%; EPSS 0.9% chance of exploitation in 30 days, percentile 59%
public exploits: 0; none known

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.

Patch / fix

fixed in 1

hpe superdome_flex_server_firmware 3.30.142

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Exploit prediction

0.87% chance of exploitation in the next 30 days, higher than 59% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by	version	score	vector
NVD	3.1	6.5	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
NVD	2.0	4.0	AV:N/AC:L/Au:S/C:N/I:N/A:P

Affected products

n/a HPE Superdome Flex Server

References

support.hpe.com /hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf04102en_us
vendor-advisory

Sources

CVE List CVE-2021-26581
NVD CVE-2021-26581

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