CVE-2026-2906

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 security flaw has been discovered in Tenda HG9 300001138. Affected is an unknown function of the file /boaform/formSamba of the component Samba Configuration Endpoint. The manipulation of the argument sambaCap results in stack-based buffer overflow. The attack may be launched remotely. The exploit has been released to the public and may be used for attacks.

Analysis

Remote code execution in Tenda HG9 firmware via stack buffer overflow in the Samba configuration endpoint allows authenticated attackers to achieve complete system compromise through manipulation of the sambaCap parameter. Public exploit code exists for this vulnerability, increasing the risk of active exploitation. …

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Remediation

Within 24 hours: Inventory all Tenda HG9 devices in your environment and isolate affected units from production networks if possible. Within 7 days: Implement network segmentation to restrict access to the vulnerable /boaform/formSamba endpoint and monitor for exploitation attempts. …

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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-2026-2906 vulnerability details – vuln.today

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