CVE-2026-1803Public exploitNetwork attack vector

Root shell access via default SSH credentials

Published Feb 3, 2026 · Updated Feb 3, 2026

Default credentials in the Dropbear SSH service in Ziroom ZHOME A0101 1.0.1.0 allow remote attackers to obtain a root shell. The factory configuration enables Dropbear on TCP port 1022 with root login and password authentication, accepting a documented default root credential. Network access to the nonstandard SSH port is required; successful authentication grants privileged command execution and configuration access on the gateway.

CVSS severity8.1
High
EPSS probability0.63%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Default credentials in the Dropbear SSH service in Ziroom ZHOME A0101 1.0.1.0 allow remote attackers to obtain a root shell. The factory configuration enables Dropbear on TCP port 1022 with root login and password authentication, accepting a documented default root credential. Network access to the nonstandard SSH port is required; successful authentication grants privileged command execution and configuration access on the gateway.

The record

CVE
CVE-2026-1803
Published
Feb 3, 2026
Updated
Feb 3, 2026
Vendor
Ziroom
Product
ZHOME A0101
Classifications
CWE-1392, T1078.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 3, 2026CVE publishedPublication date reported by the CVE source.
  2. Feb 3, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=1.0.1.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Ziroom · ZHOME A0101version=1.0.1.0

Published CVSS scores

7.6VulDBAV:N/AC:H/Au:N/C:C/I:C/A:C
8.2VulDBCVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P
8.1VulDBCVSS:3.1/AV:N/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.

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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)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-1392Use of Default Credentials
T1078.001Valid Accounts: Default Accounts

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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