CVE-2023-2611Network attack vector

Authentication bypass via hidden hard-coded root account

Published Jun 22, 2023 · Updated Jan 16, 2025

Use of hard-coded credentials in Advantech R-SeeNet 2.4.22 and earlier allows remote attackers to authenticate as a root-level user. The database configuration creates an additional root-level account that the web application omits from its user list, and its password cannot be changed. Unauthenticated network access is sufficient to bypass the normal login boundary and obtain the hidden account's application privileges.

CVSS severity9.8
Critical
EPSS probability0.67%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Use of hard-coded credentials in Advantech R-SeeNet 2.4.22 and earlier allows remote attackers to authenticate as a root-level user. The database configuration creates an additional root-level account that the web application omits from its user list, and its password cannot be changed. Unauthenticated network access is sufficient to bypass the normal login boundary and obtain the hidden account's application privileges.

The record

CVE
CVE-2023-2611
Published
Jun 22, 2023
Updated
Jan 16, 2025
Vendor
Advantech
Product
R-SeeNet
Classifications
CWE-798, T1078.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 22, 2023CVE publishedPublication date reported by the CVE source.
  2. Jan 16, 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?

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

  1. Affected versionversion=0 <=2.4.22

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Advantech · R-SeeNetversion=0 <=2.4.22

Published CVSS scores

9.8ICS-CERTCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.8NIST NVDCVSS: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 exploitUnconfirmed

Weakness, pattern, technique

CWE-798Use of Hard-coded Credentials
T1078.001Default Accounts

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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