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CVE-2021-26589

MEDIUM
6.1
CVSS Score
Published: October 19, 2021 at 02:10 PM UTC
Updated: June 17, 2026 at 03:43 AM UTC
5 products affected across 1 vendorSuperdome Flex 280 FirmwareSuperdome Flex FirmwareSuperdome Flex 280

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Severity
MEDIUM6.1
Exploit prediction
EPSS 0.5%

Description

A potential security vulnerability has been identified in HPE Superdome Flex Servers. The vulnerability could be remotely exploited to allow Cross Site Scripting (XSS) because the Session Cookie is missing an HttpOnly Attribute. HPE has provided a firmware update to resolve the vulnerability in HPE Superdome Flex Servers.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Superdome Flex 280 Firmware· HPE
95%
v < 3.40.106
Affected range stops below 3.40.106, so it looks safe — our inference, not a vendor statement
hpe-superdome-flex-280 (same device)
Superdome Flex Firmware· HPE
95%
v < 3.40.106
Affected range stops below 3.40.106, so it looks safe — our inference, not a vendor statement
hpe-superdome-flex (same device)
Superdome Flex Server Firmware· HPE
60%
v < 3.40.106
Affected range stops below 3.40.106, so it looks safe — our inference, not a vendor statement
Superdome Flex· HPEdevice
80%
All versions
Superdome Flex 280· HPEdevice
80%
All versions

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (1)

x_refsource_MISCVendor Advisory
Source: [email protected]
https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf04199en_us

CVSS

6.1MEDIUM[email protected]
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality
LOW
Integrity
LOW
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-732

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