CVE-2020-12681: Missing TLS certificate validation on 3xLogic Infinias eIDC32 devices through 3.4.125 allows an attacker to in

Q: How do I fix CVE-2020-12681?

infinias eidc32 firmware: upgrade to newer than 3.4.125. Exact commands for each OS are on this page.

Q: Is CVE-2020-12681 being exploited?

CVE-2020-12681 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2020-12681 affect?

CVE-2020-12681 affects infinias eidc32 firmware. Severity is high (CVSS 7.5). Missing TLS certificate validation on 3xLogic Infinias eIDC32 devices through 3.4.125 allows an attacker to intercept/control the channel by which door lock policies are applied.

Q: How urgent is CVE-2020-12681?

Priority 42/100. High severity; Remotely exploitable, no login, no user action

This month

HIGH 7.5REMOTEUPGRADE

CVE-2020-12681 is a high-severity flaw (CVSS 7.5) affecting infinias eidc32 firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Missing TLS certificate validation on 3xLogic Infinias eIDC32 devices through 3.4.125 allows an attacker to intercept/control the channel by which door lock policies are applied.

Why this priority

High severity
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	7.5 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.5% (top 56%)
CISA exploited list	No
Weakness	CWE-295
Published	2021-07-26
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: 3xlogic

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2021-07-26 12:15 UTCPublished CVE record published
2026-06-17 02:52 UTCUpdated Record last modified

3xlogic infinias eidc32 firmware UPGRADE

Affected: <= 3.4.125

Fixed in: newer than 3.4.125

Safe to downgrade to: no unaffected older release

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2020-12681?

infinias eidc32 firmware: upgrade to newer than 3.4.125. Exact commands for each OS are on this page.

Is CVE-2020-12681 being exploited?

CVE-2020-12681 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2020-12681 affect?

CVE-2020-12681 affects infinias eidc32 firmware. Severity is high (CVSS 7.5). Missing TLS certificate validation on 3xLogic Infinias eIDC32 devices through 3.4.125 allows an attacker to intercept/control the channel by which door lock policies are applied.

How urgent is CVE-2020-12681?

Priority 42/100. High severity; Remotely exploitable, no login, no user action

Related CVEs

CVE-2020-11542 CRITICAL 9.8 MITIGATE MITIGATE 3xLOGIC Infinias eIDC32 2.213 devices with Web 1.107 allow Authentication Bypass via CMD.HTM?CMD= because auth

References

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