CVE•Published 2026-09-06•Modified 2026-09-11•1 article on news•6 live references•NVD data

CVE-2026-86166

Vulnerability data via NVD (ingested)

CVSS v3.1

8.8

HIGH

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

EPSS percentile

Exploit Prediction Scoring System · top 60% of all CVEs

Weaknesses (CWE)

CWE-119Improper Restriction of Operations within the Bounds of a Memory Buffer CWE-120Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

Description

A vulnerability was determined in Tenda HG10 300001138. This issue affects the function formWanRedirect of the file /boaform/formWanRedirect of the component Boa Web Server. Executing a manipulation of the argument if can lead to buffer overflow. The attack may be launched remotely. The exploit has been publicly disclosed and may be utilized.

Timeline

Published 2026-09-06

Modified 2026-09-11

External references

NVD MITRE Exploit-DB GitHub PoC trickest/cve VulnCheck

Search for exposed instances

Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common).

Shodan · vuln tag0 hosts

vuln:CVE-2026-86166

Hosts Shodan has explicitly fingerprinted as vulnerable.

More intel sources (5)

Shodan report

vuln:CVE-2026-86166

Country / ASN / product breakdown for the vuln query.

Censys

vulnerabilities.cve_id: CVE-2026-86166

Censys host search filtered to this CVE id.

grep.app

CVE-2026-86166