CVE-2020-12681Network attack vector

Unauthenticated door lock policy manipulation via certificate nonvalidation

Published Jul 26, 2021 · Updated Aug 4, 2024

Improper certificate validation in 3xLOGIC Infinias eIDC32 through 3.4.125 allows remote attackers to alter door lock policies. The controller's cloud-server TLS client fails to validate the server certificate, allowing interception or modification of policy traffic. Exploitation requires a man-in-the-middle position on the controller-to-cloud channel; the reported consequence is unauthorized control of applied door lock policy, not code execution or service interruption.

CVSS severity7.5
High
EPSS probability0.52%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper certificate validation in 3xLOGIC Infinias eIDC32 through 3.4.125 allows remote attackers to alter door lock policies. The controller's cloud-server TLS client fails to validate the server certificate, allowing interception or modification of policy traffic. Exploitation requires a man-in-the-middle position on the controller-to-cloud channel; the reported consequence is unauthorized control of applied door lock policy, not code execution or service interruption.

The record

CVE
CVE-2020-12681
Published
Jul 26, 2021
Updated
Aug 4, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-295, T1557
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 26, 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

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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 privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
5.0NIST NVDAV:N/AC:L/Au:N/C:N/I:P/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 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

CWE-295Improper Certificate Validation
T1557Adversary-in-the-Middle

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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