CVE-2026-19412

Administrative access via hardcoded digest credentials

Published Aug 28, 2026 · Updated Aug 28, 2026

Use of hardcoded credentials in CP PLUS CP-XR-DE21-S firmware 1.057.043_0027 and earlier allows remote attackers to gain administrative access. The firmware embeds identical HTTP Digest authentication credentials in every affected device instead of provisioning device-unique secrets. Exploitation requires acquisition of the embedded authentication data and local-network reachability; successful authentication grants full administrative control and privileged operations.

CVSS severity8.7
High
EPSS probability0.19%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Use of hardcoded credentials in CP PLUS CP-XR-DE21-S firmware 1.057.043_0027 and earlier allows remote attackers to gain administrative access. The firmware embeds identical HTTP Digest authentication credentials in every affected device instead of provisioning device-unique secrets. Exploitation requires acquisition of the embedded authentication data and local-network reachability; successful authentication grants full administrative control and privileged operations.

The record

CVE
CVE-2026-19412
Published
Aug 28, 2026
Updated
Aug 28, 2026
Vendor
CP PLUS
Product
CP-XR-DE21-S
Classifications
CWE-798, T1078.001
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 28, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 28, 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=version 1.057.043_0027 or below

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesunauthenticated

What is affected?

CP PLUS · CP-XR-DE21-Sversion=version 1.057.043_0027 or below

Published CVSS scores

8.7CERT-InCVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

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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)
Vectoradjacent
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

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