CVE-2021-37292Public exploitNetwork attack vector

Remote administrative control via hidden backdoor account

Published Apr 11, 2022 · Updated Jul 5, 2026

Access control failure in KevinLAB 4ST L-BEMS 1.0.0 allows remote attackers to obtain full administrative control through a backdoor account. The application embeds an undocumented account with admin_pk=1 privileges, hides it from the administrative user list, and prevents credential changes through normal RMI operations. Attackers with the preset credentials can authenticate remotely and use every exposed BEMS function, including energy and facility controls.

CVSS severity7.2
High
EPSS probability6.55%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Access control failure in KevinLAB 4ST L-BEMS 1.0.0 allows remote attackers to obtain full administrative control through a backdoor account. The application embeds an undocumented account with admin_pk=1 privileges, hides it from the administrative user list, and prevents credential changes through normal RMI operations. Attackers with the preset credentials can authenticate remotely and use every exposed BEMS function, including energy and facility controls.

The record

CVE
CVE-2021-37292
Published
Apr 11, 2022
Updated
Jul 5, 2026
Vendor
Unknown vendor
Product
Unknown product
Classifications
T1078.001
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 11, 2022CVE publishedPublication date reported by the CVE source.
  2. Jul 5, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

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

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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

T1078.001Valid Accounts Default Accounts

Public exploit references

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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