CVE-2023-31762Public exploit

Alarm control bypass via fixed-code RF replay

Published May 23, 2023 · Updated Jan 17, 2025

Authentication bypass in Digoo DG-HAMB Smart Home Security System 1.0 allows physically proximate attackers to arm or disarm the alarm via RF replay. The 433 MHz keyfob transmitter emits identical fixed codes for repeated button presses, and the base station accepts a previously captured code again. Exploitation requires radio proximity and capture of a valid keyfob transmission; replay grants control of the alarm's arming state without authentication.

CVSS severity7.5
High
EPSS probability0.29%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Authentication bypass in Digoo DG-HAMB Smart Home Security System 1.0 allows physically proximate attackers to arm or disarm the alarm via RF replay. The 433 MHz keyfob transmitter emits identical fixed codes for repeated button presses, and the base station accepts a previously captured code again. Exploitation requires radio proximity and capture of a valid keyfob transmission; replay grants control of the alarm's arming state without authentication.

The record

CVE
CVE-2023-31762
Published
May 23, 2023
Updated
Jan 17, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-294
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 23, 2023CVE publishedPublication date reported by the CVE source.
  2. Jan 17, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

7.5CISA ADP VulnrichmentCVSS:3.1/AV:A/AC:H/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.

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)
Vectoradjacent
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-294Authentication Bypass by Capture-replay

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo