CVE-2025-60856

Physical root access via unauthenticated UART console

Published Oct 20, 2025 · Updated Oct 20, 2025

Missing authentication in Reolink Video Doorbell WiFi DB_566128M5MP_W allows physically proximate attackers to obtain a root shell. The researcher reports that /etc/init.d/start_app leaves /dev/ttyS0 active while /etc/passwd defines root without a password, exposing an unrestricted UART console. Physical access and a serial connection are required; Reolink disputes the issue, stating that cable access is restricted and root is password-protected.

CVSS severity6.8
Medium
EPSS probability0.29%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Missing authentication in Reolink Video Doorbell WiFi DB_566128M5MP_W allows physically proximate attackers to obtain a root shell. The researcher reports that /etc/init.d/start_app leaves /dev/ttyS0 active while /etc/passwd defines root without a password, exposing an unrestricted UART console. Physical access and a serial connection are required; Reolink disputes the issue, stating that cable access is restricted and root is password-protected.

The record

CVE
CVE-2025-60856
Published
Oct 20, 2025
Updated
Oct 20, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-306, CWE-922, T1200
Attack vector
physical
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 20, 2025CVE publishedPublication date reported by the CVE source.
  2. Oct 20, 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 vectorphysical
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

6.8CISA-ADPCVSS: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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

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 exploitUnconfirmed

Weakness, pattern, technique

CWE-306Missing Authentication for Critical Function
CWE-922Insecure Storage of Sensitive Information
T1200Hardware Additions

Public exploit references

No public exploit references are available in this record.

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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