# CVE-2026-86149 — Tenda CP3

> As of 2026-09-05, CVE-2026-86149 is a CRITICAL-severity vulnerability in Tenda CP3, CVSS v3.1 9.1, EPSS 2.0% (79.8th percentile). No Threadlinqs-tracked threat campaign has been attributed to CVE-2026-86149 as of 2026-09-05; the identifier is re-checked against the Threadlinqs threat corpus on every daily ingest.

**Last updated:** 2026-09-05

## What is CVE-2026-86149?

A weakness has been identified in Tenda CP3 27.5.57.101. This issue affects some unknown processing of the file Net/NetCheckPing.cpp. This manipulation of the argument interface_name/host causes os command injection. The attack can be initiated remotely.

The record classifies CVE-2026-86149 under weakness classes [CWE-78](https://intel.threadlinqs.com/cwe/CWE-78), [CWE-77](https://intel.threadlinqs.com/cwe/CWE-77). Its CVSS v3 base vector states that the flaw is reachable remotely over the network, needs high-privilege credentials, needs no user interaction, and has high impact on confidentiality, integrity, availability. 1 affected-product entry is recorded, across 1 vendor, listed below. The identifier was first published 30 days ago.

## Severity and exploitation probability

- **CVSS v3.1 base score:** 9.1 — CRITICAL (`CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H/E:X/RL:X/RC:R`)
- **CVSS v4.0 base score:** 9.4 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X`)
- **EPSS (FIRST):** 2.0% probability of exploitation in the next 30 days, higher than 79.8% of all scored CVEs
- **CISA KEV:** Not listed in the CISA Known Exploited Vulnerabilities catalog
- **Threadlinqs priority:** 7.7/10 — a Threadlinqs composite of the CVSS base score, the EPSS percentile and public exploit availability
- **Published:** 2026-09-05

## Is CVE-2026-86149 being exploited?

It currently carries a trending score of 50 in the Threadlinqs vulnerability feed.

## Affected products and versions

- **Tenda**: CP3

## How to fix CVE-2026-86149

No vendor patch reference has been recorded for CVE-2026-86149 in the tracked sources. Follow the references below for a fix, and treat the products listed above as exposed until the vendor states otherwise.

## Threat activity tracking CVE-2026-86149

No threat campaign in the Threadlinqs corpus currently references CVE-2026-86149, in its CVE list or as an indicator. The linkage is recomputed from the live corpus on every daily ingest, so this section fills in as soon as a tracked campaign cites the identifier.

## Sources

Enriched from CVE.org, GitHub Security Advisories, FIRST EPSS. Last verified by Threadlinqs on 2026-09-06.

**Technical analysis**

- [vuldb.com — vdb entry](https://vuldb.com/vuln/399272)

**Third-party advisory**

- [vuldb.com — signature](https://vuldb.com/vuln/399272/cti)
- [vuldb.com — third party advisory](https://vuldb.com/cve/CVE-2026-86149)
- [vuldb.com — third party advisory (895350)](https://vuldb.com/submit/895350)

**Issue tracking and product pages**

- [tenda.com.cn — product](https://www.tenda.com.cn/)

Canonical: https://intel.threadlinqs.com/cve/CVE-2026-86149
Full detection coverage and IOCs for threats exploiting CVE-2026-86149 via the Threadlinqs MCP server (Purple tier): https://intel.threadlinqs.com/mcp