Improper Privilege Management in Tenda CP3 by Tenda
CVE-2026-86153

9.4CRITICAL

Key Information:

Vendor

Tenda
Status
Cp3
Vendor
CVE Published:
6 September 2026

What is CVE-2026-86153?

A vulnerability in Tenda CP3 firmware version 27.5.57.101 affects the function CRedirServer::SetRedirectEnable, leading to improper privilege management. This flaw allows unauthorized users to manipulate access controls, making remote exploitation feasible. Organizations using this product are advised to apply security measures to mitigate potential threats.

Affected Version(s)

CP3 27.5.57.101

References

https://vuldb.com/vuln/399276
vdb-entrytechnical-description
https://vuldb.com/vuln/399276/cti
signaturepermissions-required
https://vuldb.com/cve/CVE-2026-86153
third-party-advisory

CVSS V4

Score:
9.4
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

FengZi (VulDB User)
VulDB Vulnerability Moderation Team
.