CVE-2022-45636Public exploit

Smart-lock takeover via forgeable API request signatures

Published Mar 21, 2023 · Updated Feb 26, 2025

Missing authorization in MEGAFEIS BOFEI DBD+ 1.4.3 for iOS and 1.4.4 for Android allows remote authenticated users to take over smart locks. The backend accepts SecSignDest as the authorization check even though clients derive its MD5 value from predictable request data, while transmitted session tokens are not checked. An attacker needs a DBD+ account and a nearby lock's Bluetooth-broadcast MAC address to enumerate, reassign, and unlock that lock.

CVSS severity8.1
High
EPSS probability0.69%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Missing authorization in MEGAFEIS BOFEI DBD+ 1.4.3 for iOS and 1.4.4 for Android allows remote authenticated users to take over smart locks. The backend accepts SecSignDest as the authorization check even though clients derive its MD5 value from predictable request data, while transmitted session tokens are not checked. An attacker needs a DBD+ account and a nearby lock's Bluetooth-broadcast MAC address to enumerate, reassign, and unlock that lock.

The record

CVE
CVE-2022-45636
Published
Mar 21, 2023
Updated
Feb 26, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-862
Attack vector
adjacent
Privileges
authenticated

Timeline

How it unfolded

  1. Mar 21, 2023CVE publishedPublication date reported by the CVE source.
  2. Feb 26, 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?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

8.1CISA-ADPCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
8.1NVDCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/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)
Vectoradjacent
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-862Missing Authorization

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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