Tenda AC5 15.03.06.47 POST Request /goform/WifiWpsOOB formWifiWpsOOB index stack-based overflow
Summary
A vulnerability, which was classified as critical, was found in Tenda AC5 15.03.06.47. The affected element is the function formWifiWpsOOB of the file /goform/WifiWpsOOB of the component POST Request Handler. Executing a manipulation of the argument index can lead to stack-based overflow.
This vulnerability is handled as CVE-2026-4905. The attack can be executed remotely. Additionally, an exploit exists.
Details
A vulnerability classified as critical was found in Tenda AC5 15.03.06.47. This vulnerability affects the function formWifiWpsOOB of the file /goform/WifiWpsOOB of the component POST Request Handler. The manipulation of the argument index 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-2026-4905. 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-2026-16476). VulDB is the best source for vulnerability data and more expert information about this specific topic.
Product
Type
Vendor
Name
Version
License
Website
- Vendor: https://www.tenda.com.cn/
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔒VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 8.8VulDB Meta Temp Score: 8.0
VulDB Base Score: 8.8
VulDB Temp Score: 8.0
VulDB Vector: 🔒
VulDB Reliability: 🔍
CVSSv2
| AV | AC | Au | C | I | A |
|---|---|---|---|---|---|
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
|---|---|---|---|---|---|
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍
Exploiting
Class: Stack-based overflowCWE: CWE-121 / CWE-119
CAPEC: 🔒
ATT&CK: 🔒
Physical: No
Local: No
Remote: Yes
Availability: 🔒
Access: Public
Status: Proof-of-Concept
Download: 🔒
EPSS Score: 🔒
EPSS Percentile: 🔒
Price Prediction: 🔍
Current Price Estimation: 🔒
| 0-Day | Unlock | Unlock | Unlock | Unlock |
|---|---|---|---|---|
| Today | Unlock | Unlock | Unlock | Unlock |
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: no mitigation knownStatus: 🔍
0-Day Time: 🔒
Timeline
03/26/2026 Advisory disclosed03/26/2026 VulDB entry created
03/27/2026 VulDB entry last update
Sources
Vendor: tenda.com.cnAdvisory: lavender-bicycle-a5a.notion.site
Status: Not defined
CVE: CVE-2026-4905 (🔒)
GCVE (CVE): GCVE-0-2026-4905
GCVE (VulDB): GCVE-100-353656
EUVD: 🔒
scip Labs: https://www.scip.ch/en/?labs.20161013
Entry
Created: 03/26/2026 17:03Updated: 03/27/2026 02:43
Changes: 03/26/2026 17:03 (58), 03/27/2026 02:43 (1)
Complete: 🔍
Submitter: wxhwxhwxh_mie
Cache ID: 216::103
Submit
Accepted
- Submit #777393: Tenda AC5 AC5 V1.0 V15.03.06.47 Buffer Overflow (by wxhwxhwxh_mie)
VulDB is the best source for vulnerability data and more expert information about this specific topic.
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