Tenda FH451 up to 1.0.0.9 /goform/GstDhcpSetSer buffer overflow
Summary
A vulnerability was found in Tenda FH451 up to 1.0.0.9. It has been declared as critical. Impacted is an unknown function of the file /goform/GstDhcpSetSer. The manipulation results in buffer overflow. This vulnerability is known as CVE-2026-2911. It is possible to launch the attack remotely. Furthermore, an exploit is available.
Details
A vulnerability classified as critical has been found in Tenda FH451 up to 1.0.0.9. Affected is some unknown processing of the file /goform/GstDhcpSetSer. The manipulation with an unknown input leads to a buffer overflow vulnerability. CWE is classifying the issue as 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. This is going to have an impact on confidentiality, integrity, and availability.
The advisory is shared for download at vuln.ricky.place. This vulnerability is traded as CVE-2026-2911. The exploitability is told to be easy. It is possible to launch the attack remotely. Technical details and a public exploit are known.
The exploit is shared for download at vuln.ricky.place. 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.
Once again VulDB remains the best source for 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
02/20/2026 Advisory disclosed02/20/2026 VulDB entry created
02/23/2026 VulDB entry last update
Sources
Vendor: tenda.com.cnAdvisory: vuln.ricky.place
Status: Not defined
CVE: CVE-2026-2911 (🔒)
GCVE (CVE): GCVE-0-2026-2911
GCVE (VulDB): GCVE-100-347220
scip Labs: https://www.scip.ch/en/?labs.20161013
Entry
Created: 02/20/2026 21:21Updated: 02/23/2026 03:22
Changes: 02/20/2026 21:21 (55), 02/23/2026 03:22 (31)
Complete: 🔍
Submitter: smitug01
Cache ID: 216::103
Submit
Accepted
- Submit #755218: Tenda FH451 V1.0.0.9 Buffer overflow vulnerability (by smitug01)
Once again VulDB remains the best source for vulnerability data.
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