Hardcoded Credentials Vulnerability in CP Plus CP-XR-DE21-S Router

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-19412
StatePUBLISHED
AssignerCERT-In
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-08-28 16:17:08 UTC
Updated2026-09-01 21:08:51 UTC
DescriptionThis vulnerability exists in the CP Plus CP-XR-DE21-S Router due to the presence of hardcoded HTTP Digest authentication credentials in the firmware that are identical across all devices running the affected firmware. An attacker with access to the local network could exploit this vulnerability by obtaining the hardcoded authentication information from the firmware. Successful exploitation of this vulnerability could allow the attacker to gain unauthorized administrative access and perform privileged operations on the targeted device.

Risk And Classification

Primary CVSS: v4.0 8.7 HIGH from [email protected]

CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS: 0.001880000 probability, percentile 0.084400000 (date 2026-09-03)

Problem Types: CWE-798 | CWE-798 CWE-798: Use of Hard-coded Credentials

VersionSourceTypeScoreSeverityVector
4.0[email protected]Secondary8.7HIGHCVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/C...
4.0CNACVSS8.7HIGHCVSS: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 v4.0 Breakdown

Attack Vector
Adjacent
Attack Complexity
Low
Attack Requirements
None
Privileges Required
None
User Interaction
None
Confidentiality
High
Integrity
High
Availability
High
Sub Conf.
None
Sub Integrity
None
Sub Availability
None

CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA CP Plus CP-XR-DE21-S Router affected version 1.057.043_0027 or below Not specified

References

ReferenceSourceLinkTags
www.cert-in.org.in/s2cMainServlet [email protected] www.cert-in.org.in
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: This vulnerability is reported by a team of security researchers including Stalin S, Harini M, Rohit Surya A T and Reginald Alfret V. (en)

Additional Advisory Data

Solutions

CNA: Upgrade CP Plus CP-XR-DE21-S Router to patched firmware version 1.057.043_0034 https://cpplusworld.com/prodassets/firmware/02a50613-6182-41dc-8b7f-cd58f1e6cba5.bin

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