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A vulnerability was detected in Tenda AC9 15.03.02.13. (CVE-2026-104611)

0
High
Published: 10/02/2026 (10/02/2026, 15:31:23 UTC)
Source: GCVE Database

Description

A stack-based buffer overflow vulnerability exists in the POST request handler component of Tenda AC9 firmware version 15.03.02.13, specifically in the /goform/fast_setting_internet_set file when manipulating the netWanType argument. This vulnerability can be exploited remotely and has a high severity score of 9.1. Public exploit code is available, increasing the risk of exploitation. No patch or remediation information is currently provided.

CVSS v3.1

Score 9.1critical

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

Affected software

Affected versions
=15.03.02.13

AI-Powered Analysis

Machine-generated threat intelligence

AILast updated: 10/02/2026, 17:52:41 UTC

Technical Analysis

The vulnerability in Tenda AC9 15.03.02.13 involves a stack-based buffer overflow triggered by manipulating the netWanType argument in the POST request handler located in /goform/fast_setting_internet_set. This flaw allows remote attackers with high privileges to cause a buffer overflow, potentially leading to complete compromise of confidentiality, integrity, and availability. The CVSS 3.1 score is 9.1 (AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H), indicating a critical impact if exploited. Public exploit code exists, but no vendor patch or official remediation guidance is currently available.

Potential Impact

Successful exploitation can result in full system compromise, including complete loss of confidentiality, integrity, and availability of the affected device. The vulnerability is remotely exploitable and requires high privileges. The presence of public exploit code increases the likelihood of attacks.

Mitigation Recommendations

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, restrict remote access to the affected device and monitor for suspicious activity related to the netWanType parameter in POST requests.

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Technical Details

Gcve Source
db.gcve.eu
Osv Id
GHSA-5xvg-86hf-5h5q
Osv Schema Version
1.4.0
Aliases
["CVE-2026-104611"]
Database Specific Severity
HIGH
Cvss Version
3.1
State
PUBLISHED

Threat ID: 6abfee79a43b0b3b89e5439c

Added to database: 10/02/2026, 17:48:41 UTC

Last enriched: 10/02/2026, 17:52:41 UTC

Last updated: 10/03/2026, 02:45:56 UTC

Views: 3

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