Tenda F453 1.0.0.3 httpd /goform/L7Prot frmL7ProtForm page buffer overflow
Summary
A vulnerability classified as critical was found in Tenda F453 1.0.0.3. This affects the function frmL7ProtForm of the file /goform/L7Prot of the component httpd. Executing a manipulation of the argument page can lead to buffer overflow.
This vulnerability appears as CVE-2026-3274. The attack may be performed from remote. In addition, an exploit is available.
Details
A vulnerability has been found in Tenda F453 1.0.0.3 and classified as critical. This vulnerability affects the function frmL7ProtForm of the file /goform/L7Prot of the component httpd. The manipulation of the argument page with an unknown input leads to a buffer overflow vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect confidentiality, integrity, and availability.
The advisory is available at github.com. This vulnerability was named CVE-2026-3274. 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 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.
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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: 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
02/26/2026 Advisory disclosed02/26/2026 VulDB entry created
02/26/2026 VulDB entry last update
Sources
Vendor: tenda.com.cnAdvisory: github.com
Status: Not defined
CVE: CVE-2026-3274 (🔒)
GCVE (CVE): GCVE-0-2026-3274
GCVE (VulDB): GCVE-100-347998
scip Labs: https://www.scip.ch/en/?labs.20161013
Entry
Created: 02/26/2026 16:21Changes: 02/26/2026 16:21 (58)
Complete: 🔍
Submitter: LtzHust2
Cache ID: 216::103
Submit
Accepted
- Submit #759621: Tenda F453 v1.0.0.3 Buffer Access Using Size of Source Buffer (by LtzHust2)
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