CVSS 8.8 · HIGH

CVE-2026-7057

A flaw has been found in Tenda F456 1.0.0.5. The affected element is an unknown function of the file /goform/setcfm of the component httpd. This manipulation of the argument funcname/funcpara1 causes buffer overflow. It is possible to initiate the attack remotely. The exploit has been published and may be used.

View on NVD

Analysis

This is a vendor-specific firmware vulnerability in a consumer-grade Tenda router. It does not affect the software development stack, server infrastructure, or common developer tooling used by the community.

Severity

Score: 8.8(HIGH)

Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

AV: NETWORK

AC: LOW

PR: LOW

UI: NONE

S: UNCHANGED

C: HIGH

I: HIGH

A: HIGH

Weakness (CWE): CWE-119CWE-120

EPSS

Probability of exploitation (next 30 days): 0.0008 (0.1%)

Percentile: 23.2%

EPSS: 2026-05-06

Affects

tenda:f456_firmwaretenda:f456

Technical description

Published: 4/26/2026, 10:17:33 PM

Last modified: 4/29/2026, 10:18:00 PM

References

How to read this card

Actively exploited

KEV (Known Exploited Vulnerabilities) is CISA's catalog of CVEs confirmed as actively exploited in the real world. If a CVE is on KEV, someone is already using it in attacks.

CVSS 10.0

CVSS 10.0 — máxima severidad teórica. Explotable de forma remota, sin privilegios, con impacto total. Aún no confirmada como explotada en el mundo real, pero parchea ya.

AI-recommended

Un modelo de lenguaje revisó el CVE y consideró que afecta a software ampliamente desplegado o herramientas comunes de desarrollo. Un humano del equipo aprobó la publicación antes de que llegara aquí.

Categorías de impacto que evalúa la IA

widely_deployed_infra — kernel Linux, OpenSSL, glibc, k8s, Docker, nginx, OpenSSH.

popular_dev_tooling — Node.js, Python, Go, React, Next.js, librerías comunes de npm/pip.

common_consumer_software — Chrome, Firefox, Windows, macOS, apps móviles populares.

enterprise_saas — GitHub, GitLab, Atlassian, Salesforce, Cisco, Fortinet, Ivanti.

niche_software — CMS regionales, herramientas de hobby, librerías de poco uso.

not_relevant — firmware específico de proveedor, software descontinuado.

EPSS — EPSS (Exploit Prediction Scoring System) by FIRST.org estimates the probability that a CVE will be exploited in the next 30 days. Range is 0 to 1; very fresh CVEs typically score low until evidence accumulates.