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Fencer Vulns
medium 6.8

CVE-2022-30111 json

Due to the use of an insecure algorithm for rolling codes in MCK Smartlock 1.0, allows attackers to unlock the mechanism via replay attacks.

published 2022-05-18 4 y ago modified 2026-06-17 4 mo ago also EUVD-2022-35324

cvss
6.8
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.3%
EPSS 0.3% chance of exploitation in 30 days, percentile 24%
public exploits
0
none known

Summary

Due to the use of an insecure algorithm for rolling codes in MCK Smartlock 1.0, allows attackers to unlock the mechanism via replay attacks.

Exploit prediction

0.32% chance of exploitation in the next 30 days, higher than 24% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • youtube.com https://www.youtube.com/watch?v=EruaGuE-cWI referenced PoC, tagged "exploit" by a source, unverified
  • twitter.com https://twitter.com/Kevin2600/status/1495007534419038213 referenced PoC, tagged "exploit" by a source, unverified
  • tiger-team-1337.blogspot.com https://tiger-team-1337.blogspot.com/2022/05/rf-remote-mck-lock-predictable-rolling.html referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.1 6.8 CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 4.6 AV:L/AC:L/Au:N/C:P/I:P/A:P

Classification

Weakness
  • CWE-327 Use of a Broken or Risky Cryptographic Algorithm

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.