CVE-2025-48416Network attack vector

Root access via re-enabled hard-coded SSH account

Published May 21, 2025 · Updated Nov 3, 2025

Hidden SSH functionality in eCharge Hardy Barth cPH2 and cPP2 firmware 2.2.0 and earlier allows remote attackers to gain root access. The firmware ships a fixed root password hash in /etc/shadow while OpenSSH listens on TCP port 22, exposing that account when root login is enabled. PermitRootLogin blocks the account by default, but unauthenticated network or physical configuration paths can re-enable it and expose full device control.

CVSS severity8.1
High
EPSS probability0.55%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Hidden SSH functionality in eCharge Hardy Barth cPH2 and cPP2 firmware 2.2.0 and earlier allows remote attackers to gain root access. The firmware ships a fixed root password hash in /etc/shadow while OpenSSH listens on TCP port 22, exposing that account when root login is enabled. PermitRootLogin blocks the account by default, but unauthenticated network or physical configuration paths can re-enable it and expose full device control.

The record

CVE
CVE-2025-48416
Published
May 21, 2025
Updated
Nov 3, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-912, CAPEC-176, T1078.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 21, 2025CVE publishedPublication date reported by the CVE source.
  2. Nov 3, 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 vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

8.1CISA-ADPCVSS: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.

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 exploitUnconfirmed

Weakness, pattern, technique

CWE-912Hidden Functionality
CAPEC-176Configuration/Environment Manipulation
T1078.001Valid Accounts: Default Accounts

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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