CVE-2022-40633

Physical cabinet access via cloneable card identifiers

Published Mar 2, 2023 · Updated Jan 17, 2025

Improper access control in Rittal CMC III all versions allows physically proximate attackers to open cabinets with cloned access cards. The reader authorizes door release by checking the card UID in the Processing Unit, so copying that identifier reproduces an accepted credential. Exploitation requires presenting the cloned transponder at the reader and grants unauthorized physical access to the protected enclosure.

CVSS severity4.6
Medium
EPSS probability0.26%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper access control in Rittal CMC III all versions allows physically proximate attackers to open cabinets with cloned access cards. The reader authorizes door release by checking the card UID in the Processing Unit, so copying that identifier reproduces an accepted credential. Exploitation requires presenting the cloned transponder at the reader and grants unauthorized physical access to the protected enclosure.

The record

CVE
CVE-2022-40633
Published
Mar 2, 2023
Updated
Jan 17, 2025
Vendor
Rittal
Product
CMC III
Classifications
CWE-284
Attack vector
physical
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 2, 2023CVE publishedPublication date reported by the CVE source.
  2. Jan 17, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

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  1. Affected versionversion=all versions

What conditions does exploitation require?

Attack vectorphysical
Required privilegesunauthenticated

What is affected?

Rittal · CMC IIIversion=all versions

Published CVSS scores

4.6CISA-ADPCVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
4.6NVDCVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/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.

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No observations available

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

Weakness, pattern, technique

CWE-284Improper Access Control

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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