CVE-2021-37727Network attack vector

Authenticated command execution via undisclosed input handling

Published Oct 12, 2021 · Updated Aug 4, 2024

OS command injection in HPE Aruba Instant affected releases allows remote authenticated users to execute arbitrary commands on access points. HPE and Aruba have not published the affected component, input field, or incorrect command-construction operation. Administrator-level access is required, and successful exploitation grants command execution with complete control of the device.

CVSS severity7.2
High
EPSS probability3.06%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

OS command injection in HPE Aruba Instant affected releases allows remote authenticated users to execute arbitrary commands on access points. HPE and Aruba have not published the affected component, input field, or incorrect command-construction operation. Administrator-level access is required, and successful exploitation grants command execution with complete control of the device.

The record

CVE
CVE-2021-37727
Published
Oct 12, 2021
Updated
Aug 4, 2024
Vendor
Hewlett Packard Enterprise (HPE)
Product
Aruba Instant
Classifications
CWE-78, T1059
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Oct 12, 2021CVE 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=Aruba Instant 6.4.x.x: 6.4.4.8-4.2.4.18 and below
  2. Affected versionversion=Aruba Instant 6.5.x.x: 6.5.4.20 and below
  3. Affected versionversion=Aruba Instant 8.5.x.x: 8.5.0.12 and below
  4. Affected versionversion=Aruba Instant 8.6.x.x: 8.6.0.11 and below
  5. Affected versionversion=Aruba Instant 8.7.x.x: 8.7.1.3 and below

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Hewlett Packard Enterprise (HPE) · Aruba Instantversion=Aruba Instant 6.4.x.x: 6.4.4.8-4.2.4.18 and below; version=Aruba Instant 6.5.x.x: 6.5.4.20 and below; version=Aruba Instant 8.5.x.x: 8.5.0.12 and below; version=Aruba Instant 8.6.x.x: 8.6.0.11 and below; version=Aruba Instant 8.7.x.x: 8.7.1.3 and below

Published CVSS scores

9.0NIST NVDAV:N/AC:L/Au:S/C:C/I:C/A:C
7.2NIST NVDCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
T1059Command and Scripting Interpreter

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

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Your stack

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