RCE in Tenda Cp3
CVE-2026-86151
A vulnerability was detected in Tenda CP3 27.5.57.101. The affected element is the function sub_2F77E8 of the file Apis/system.c of the component Network Configuration Management. Performing a manipulation results in os command injection. The attack may be initiated remotely.
Vulnerability class: Command Injection (OS Command Injection)
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: 0.029 (87.0th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 87th percentile — 87.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.020 · newest: 0.029 · change: +0.009
Affected products
- Tenda Cp3 — versions 27.5.57.101
Weakness classification (CWE)
References
- vuldb.com/vuln/399274 (technical-description, vdb-entry)
- vuldb.com/vuln/399274/cti (signature, permissions-required)
- vuldb.com/cve/CVE-2026-86151 (third-party-advisory)
- vuldb.com/submit/895352 (third-party-advisory)
- www.tenda.com.cn/ (product)
Frequently asked questions
- What is CVE-2026-86151?
- CVE-2026-86151 is a critical-severity vulnerability in Tenda Cp3, classified under Command Injection. CVSS score: 9.1/10. Published 2026-09-06.
- How severe is CVE-2026-86151?
- Critical severity. CVSS v3 base score is 9.1 out of 10.