CVE-2022-26423Public exploitNetwork attack vector

Credential-hash disclosure via unauthenticated user API

Published Oct 21, 2022 · Updated Apr 17, 2025

Missing authorization in Aethon TUG Home Base Server before 24 allows remote attackers to read hashed user credentials over HTTP. The server answers unauthenticated GET requests to its /api/v2/user endpoint with account password hashes, which use MD5 and can be brute-forced offline. Network reachability to the management interface is the only reported gate, and the disclosure enables password recovery rather than direct modification or service interruption.

CVSS severity7.5
High
EPSS probability0.67%
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

Missing authorization in Aethon TUG Home Base Server before 24 allows remote attackers to read hashed user credentials over HTTP. The server answers unauthenticated GET requests to its /api/v2/user endpoint with account password hashes, which use MD5 and can be brute-forced offline. Network reachability to the management interface is the only reported gate, and the disclosure enables password recovery rather than direct modification or service interruption.

The record

CVE
CVE-2022-26423
Published
Oct 21, 2022
Updated
Apr 17, 2025
Vendor
Aethon
Product
TUG Home Base Server
Classifications
CWE-284, CWE-200, CWE-862, T1555
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 21, 2022CVE publishedPublication date reported by the CVE source.
  2. Apr 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?

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

  1. Affected versionversion=All versions <24

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Aethon · TUG Home Base Serverversion=All versions <24

Published CVSS scores

8.2ICS-CERTCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:N
7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

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)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-284Improper Access Control
CWE-200Exposure of Sensitive Information to an Unauthorized Actor
CWE-862Missing Authorization
T1555Credentials from Password Stores

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