Privilege escalation in Tenda Cp3
CVE-2026-86153
A vulnerability has been found in Tenda CP3 27.5.57.101. This affects the function CRedirServer::SetRedirectEnable of the file Functions/Redirect.cpp. The manipulation leads to improper privilege management. Remote exploitation of the attack is possible.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.007 (52.9th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 53rd percentile — 52.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.007 · change: +0.003
Affected products
- Tenda Cp3 — versions 27.5.57.101
Weakness classification (CWE)
References
- vuldb.com/vuln/399276 (technical-description, vdb-entry)
- vuldb.com/vuln/399276/cti (signature, permissions-required)
- vuldb.com/cve/CVE-2026-86153 (third-party-advisory)
- vuldb.com/submit/895354 (third-party-advisory)
- www.tenda.com.cn/ (product)
Frequently asked questions
- What is CVE-2026-86153?
- CVE-2026-86153 is a critical-severity vulnerability in Tenda Cp3, classified under Incorrect Privilege Assignment. CVSS score: 9.1/10. Published 2026-09-06.
- How severe is CVE-2026-86153?
- Critical severity. CVSS v3 base score is 9.1 out of 10.