CVE-2026-2905

HIGH
2026-02-22 [email protected]
8.8
CVSS 3.1
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CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

3
Analysis Generated
Mar 12, 2026 - 22:04 vuln.today
PoC Detected
Feb 23, 2026 - 20:22 vuln.today
Public exploit code
CVE Published
Feb 22, 2026 - 02:16 nvd
HIGH 8.8

Description

A vulnerability was identified in Tenda HG9 300001138. This impacts an unknown function of the file /boaform/formWlanSetup of the component Wireless Configuration Endpoint. The manipulation of the argument ssid leads to stack-based buffer overflow. The attack may be initiated remotely. The exploit is publicly available and might be used.

Analysis

Stack buffer overflow in Tenda HG9 firmware's wireless configuration endpoint allows authenticated remote attackers to achieve arbitrary code execution through a malicious SSID parameter. Public exploit code exists for this vulnerability, increasing the risk of active exploitation. …

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Remediation

Within 24 hours: Identify all Tenda HG9 300001138 devices in your environment and isolate them from critical network segments. Within 7 days: Evaluate replacement options or implement compensating controls (network segmentation, WAF rules blocking /boaform/formWlanSetup access). …

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Priority Score

64
Low Medium High Critical
KEV: 0
EPSS: +0.1
CVSS: +44
POC: +20

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CVE-2026-2905 vulnerability details – vuln.today

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