CVE-2021-41004Network attack vector

Unauthenticated switch reboot via undisclosed web request

Published Apr 12, 2022 · Updated Aug 4, 2024

Denial of service in Aruba Instant On 1930 Switch Series firmware 1.0.7.0 and earlier allows remote attackers to reboot the switch. Aruba has not disclosed which local-web-interface request or input is processed incorrectly to trigger the reboot. The flaw requires local web management but no authentication; cloud-managed switches are unaffected, and the reported consequence is a reboot.

CVSS severity7.5
High
EPSS probability0.95%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Denial of service in Aruba Instant On 1930 Switch Series firmware 1.0.7.0 and earlier allows remote attackers to reboot the switch. Aruba has not disclosed which local-web-interface request or input is processed incorrectly to trigger the reboot. The flaw requires local web management but no authentication; cloud-managed switches are unaffected, and the reported consequence is a reboot.

The record

CVE
CVE-2021-41004
Published
Apr 12, 2022
Updated
Aug 4, 2024
Vendor
Aruba Networks
Product
Aruba Instant On 1930 Switch Series
Classifications
T1499.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 12, 2022CVE 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

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Is a vulnerable build present?

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

  1. Affected versionversion=Firmware below v1.0.7.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Aruba Networks · Aruba Instant On 1930 Switch Seriesversion=Firmware below v1.0.7.0

Published CVSS scores

7.5GitHub Advisory DatabaseCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
7.5Aruba NetworksCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1499.004Application or System Exploitation

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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