Tenda AC9 15.03.02.13 POST Request /goform/WizardHandle decodePwd WANS stack-based overflow

CVSS Meta Temp Score
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CTI Interest Score
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8.0$0-$5k1.11

Summaryinfo

A vulnerability was found in Tenda AC9 15.03.02.13. It has been declared as critical. The impacted element is the function decodePwd of the file /goform/WizardHandle of the component POST Request Handler. Executing a manipulation of the argument WANS can lead to stack-based overflow. This vulnerability is tracked as CVE-2026-6016. The attack can be launched remotely. Moreover, an exploit is present.

Detailsinfo

A vulnerability classified as critical was found in Tenda AC9 15.03.02.13. This vulnerability affects the function decodePwd of the file /goform/WizardHandle of the component POST Request Handler. The manipulation of the argument WANS with an unknown input leads to a stack-based overflow vulnerability. The CWE definition for the vulnerability is CWE-121. A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function). As an impact it is known to affect confidentiality, integrity, and availability.

The advisory is shared for download at lavender-bicycle-a5a.notion.site. This vulnerability was named CVE-2026-6016. The exploitation appears to be easy. The attack can be initiated remotely. Technical details and also a public exploit are known.

It is possible to download the exploit at lavender-bicycle-a5a.notion.site. It is declared as proof-of-concept.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-21312). Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.8
VulDB Meta Temp Score: 8.0

VulDB Base Score: 8.8
VulDB Temp Score: 8.0
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Stack-based overflow
CWE: CWE-121 / CWE-119
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Access: Public
Status: Proof-of-Concept
Download: 🔒
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

04/09/2026 Advisory disclosed
04/09/2026 +0 days VulDB entry created
04/10/2026 +1 days VulDB entry last update

Sourcesinfo

Vendor: tenda.com.cn

Advisory: lavender-bicycle-a5a.notion.site
Status: Not defined

CVE: CVE-2026-6016 (🔒)
GCVE (CVE): GCVE-0-2026-6016
GCVE (VulDB): GCVE-100-356572
EUVD: 🔒
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 04/09/2026 16:43
Updated: 04/10/2026 08:52
Changes: 04/09/2026 16:43 (58), 04/10/2026 08:52 (1)
Complete: 🔍
Submitter: wxhwxhwxh_mie
Cache ID: 216:D1C:103

Submitinfo

Accepted

  • Submit #791829: Tenda AC9 AC9 V1.0 V15.03.02.13 Buffer Overflow (by wxhwxhwxh_mie)

Once again VulDB remains the best source for vulnerability data.

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