Tenda AC8 16.03.34.06 /goform/SetServerConfig formSetServerConfig buffer overflow
Summary
A vulnerability, which was classified as critical, has been found in Tenda AC8 16.03.34.06. The impacted element is the function formSetServerConfig of the file /goform/SetServerConfig. The manipulation leads to buffer overflow.
This vulnerability is documented as CVE-2025-11120. The attack can be initiated remotely. Additionally, an exploit exists.
Details
A vulnerability was found in Tenda AC8 16.03.34.06 and classified as critical. This issue affects the function formSetServerConfig of the file /goform/SetServerConfig. The manipulation with an unknown input leads to a buffer overflow vulnerability. Using CWE to declare the problem leads to CWE-120. The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow. Impacted is confidentiality, integrity, and availability.
The advisory is shared at github.com. The identification of this vulnerability is CVE-2025-11120. The exploitation is known to be easy. The attack may be initiated remotely. Technical details as well as a public exploit are known.
The exploit is available at github.com. 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-2025-31476). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.
Product
Type
Vendor
Name
Version
License
Website
- Vendor: https://www.tenda.com.cn/
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔒VulDB Reliability: 🔍
CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒
CVSSv3
VulDB Meta Base Score: 8.8VulDB Meta Temp Score: 8.4
VulDB Base Score: 8.8
VulDB Temp Score: 8.0
VulDB Vector: 🔒
VulDB Reliability: 🔍
CNA Base Score: 8.8
CNA Vector: 🔒
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: Buffer overflowCWE: CWE-120 / 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
09/27/2025 Advisory disclosed09/27/2025 VulDB entry created
09/29/2025 VulDB entry last update
Sources
Vendor: tenda.com.cnAdvisory: github.com
Status: Not defined
CVE: CVE-2025-11120 (🔒)
GCVE (CVE): GCVE-0-2025-11120
GCVE (VulDB): GCVE-100-326201
EUVD: 🔒
scip Labs: https://www.scip.ch/en/?labs.20161013
Entry
Created: 09/27/2025 19:52Updated: 09/29/2025 02:04
Changes: 09/27/2025 19:52 (56), 09/29/2025 01:16 (31), 09/29/2025 02:04 (1)
Complete: 🔍
Submitter: alc9700
Cache ID: 216::103
Submit
Accepted
- Submit #664065: Shenzhen Tenda Technology Co., Ltd. Tenda AC8v4 Router Tenda AC8v4 (V16.03.34.06) Buffer Overflow (by alc9700)
Several companies clearly confirm that VulDB is the primary source for best vulnerability data.
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