CVE-2019-11998Network attack vector

Information disclosure and service interruption via unvalidated commands

Published Jan 16, 2020 · Updated Aug 4, 2024

Improper input validation in HPE Superdome Flex Server before 3.20.186 allows remote authenticated users to disclose information or interrupt service. The affected firmware processes insufficiently validated administrator commands, allowing crafted commands to bypass intended security restrictions. Administrative access to the remote management interface is required; HPE has not disclosed the command syntax or whether interruption causes a hang, crash, or reboot.

CVSS severity5.5
Medium
EPSS probability0.76%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Improper input validation in HPE Superdome Flex Server before 3.20.186 allows remote authenticated users to disclose information or interrupt service. The affected firmware processes insufficiently validated administrator commands, allowing crafted commands to bypass intended security restrictions. Administrative access to the remote management interface is required; HPE has not disclosed the command syntax or whether interruption causes a hang, crash, or reboot.

The record

CVE
CVE-2019-11998
Published
Jan 16, 2020
Updated
Aug 4, 2024
Vendor
Hewlett Packard Enterprise (HPE)
Product
HPE Superdome Flex Server
Classifications
CWE-20, T1210
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Jan 16, 2020CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=Prior to v3.20.186

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Hewlett Packard Enterprise (HPE) · HPE Superdome Flex Serverversion=Prior to v3.20.186

Published CVSS scores

5.5NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
5.0NIST NVDAV:N/AC:L/Au:N/C:P/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-20Improper Input Validation
T1210Exploitation of Remote Services

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo