CVE-2022-30111Public exploit

Physical unlocking via predictable rolling-code replay

Published May 18, 2022 · Updated Aug 3, 2024

Replay weakness in MCK Smartlock 1.0 allows physically proximate attackers to unlock the mechanism with captured keyfob codes. The lock uses a predictable rolling-code keyspace and accepts a retransmitted genuine unlock code after repeated attempts instead of reliably rejecting captured codes. Exploitation requires RF capture near the genuine keyfob and replay equipment; published testing opened the lock within 10 to 20 attempts.

CVSS severity6.8
Medium
EPSS probability0.31%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Replay weakness in MCK Smartlock 1.0 allows physically proximate attackers to unlock the mechanism with captured keyfob codes. The lock uses a predictable rolling-code keyspace and accepts a retransmitted genuine unlock code after repeated attempts instead of reliably rejecting captured codes. Exploitation requires RF capture near the genuine keyfob and replay equipment; published testing opened the lock within 10 to 20 attempts.

The record

CVE
CVE-2022-30111
Published
May 18, 2022
Updated
Aug 3, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-327
Attack vector
physical
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 18, 2022CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 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 vectorphysical
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

4.6NVDAV:L/AC:L/Au:N/C:P/I:P/A:P
6.8NVDCVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/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.

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorphysical
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-327Use of a Broken or Risky Cryptographic Algorithm

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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