CVE-2022-29730Public exploitNetwork attack vector

Remote root access via embedded credentials

Published May 27, 2022 · Updated Aug 3, 2024

Hard-coded credentials in USR IOT router firmware 1.0.36 and 1.2.7 allow remote attackers to obtain highest-privilege shell access. The Linux distribution image embeds the password for an undisclosed usr account and reuses it as the default WLAN password without a normal way to change it. A reachable SSH service on TCP port 2222 accepts the credentials without prior authentication and permits arbitrary commands with UID 0 privileges.

CVSS severity9.8
Critical
EPSS probability1.79%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Hard-coded credentials in USR IOT router firmware 1.0.36 and 1.2.7 allow remote attackers to obtain highest-privilege shell access. The Linux distribution image embeds the password for an undisclosed usr account and reuses it as the default WLAN password without a normal way to change it. A reachable SSH service on TCP port 2222 accepts the credentials without prior authentication and permits arbitrary commands with UID 0 privileges.

The record

CVE
CVE-2022-29730
Published
May 27, 2022
Updated
Aug 3, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-798, T1078.003
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 27, 2022CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 2024Record 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 vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

10.0NIST National Vulnerability DatabaseAV:N/AC:L/Au:N/C:C/I:C/A:C
9.8NIST National Vulnerability DatabaseCVSS:3.1/AV:N/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 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-798Use of Hard-coded Credentials
T1078.003Valid Accounts: Local 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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