A potential security vulnerability has been identified in HPE Superdome Flex server.
Priority LOW 30Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA.
Summary
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.
Why it matters now
EPSS 0.00872 59th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | HPE Superdome Flex Server | Prior to version 3.30.142 | — | No fix listed | CNA |
- HPE Superdome Flex Server Vendor— Affected Prior to version 3.30.142 Fixed in — No fix listed CNA
CPE configurations NVD · 2
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:hpe:superdome_flex_server_firmware:*:*:*:*:*:*:*:* | before 3.30.142 | Vulnerable | Hewlett Packard Enterprise (HPE) |
| cpe:2.3:h:hpe:superdome_flex_server:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Hewlett Packard Enterprise (HPE) |
- cpe:2.3:o:hpe:superdome_flex_server_firmware:*:*:*:*:*:*:*:* Versions before 3.30.142 Vulnerable ·Hewlett Packard Enterprise (HPE)
- cpe:2.3:h:hpe:superdome_flex_server:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Hewlett Packard Enterprise (HPE)
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2021-26581
- 2026-10-03 Alias added: GHSA-757c-m9hq-jqrg
References
More Hewlett Packard Enterprise (HPE) Superdome Flex Server Firmware vulnerabilities
- TI-2022-07754 A potential security vulnerability has been identified in HPE Superdome Flex and… CVSS 3.1MEDIUM 6.7
- TI-2020-05749 Improper input validation in HPE Superdome Flex Server CVSS 3.1MEDIUM 6.7
- TI-2019-09002 Improper input validation in Hewlett Packard Enterprise (HPE) HPE Superdome Flex Server CVSS 3.1MEDIUM 5.5
- TI-2022-17670 A potential security vulnerability has been identified in HPE Superdome Flex and… CVSS 3.1MEDIUM 5.5
Sources
- CVE-2021-26581 · CVE Program
- CVE-2021-26581 · NVD
- FIRST EPSS
- GHSA-757c-m9hq-jqrg · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences