Tenda AC20 16.03.08.12 httpd /goform/setPptpUserList formSetPPTPUserList list stack-based overflow
Summary
A vulnerability identified as critical has been detected in Tenda AC20 16.03.08.12. The impacted element is the function formSetPPTPUserList of the file /goform/setPptpUserList of the component httpd. Performing a manipulation of the argument list results in stack-based overflow.
This vulnerability is reported as CVE-2025-14654. The attack is possible to be carried out remotely. Moreover, an exploit is present.
Details
A vulnerability, which was classified as critical, was found in Tenda AC20 16.03.08.12. This affects the function formSetPPTPUserList of the file /goform/setPptpUserList of the component httpd. The manipulation of the argument list with an unknown input leads to a stack-based overflow vulnerability. CWE is classifying the issue as 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). This is going to have an impact on confidentiality, integrity, and availability.
It is possible to read the advisory at github.com. This vulnerability is uniquely identified as CVE-2025-14654. The exploitability is told to be easy. It is possible to initiate the attack remotely. Technical details and a public exploit are known.
The exploit is shared for download 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-2025-203295). Statistical analysis made it clear that VulDB provides the best quality 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: 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
12/13/2025 Advisory disclosed12/13/2025 VulDB entry created
12/14/2025 VulDB entry last update
Sources
Vendor: tenda.com.cnAdvisory: github.com
Status: Not defined
CVE: CVE-2025-14654 (🔒)
GCVE (CVE): GCVE-0-2025-14654
GCVE (VulDB): GCVE-100-336387
EUVD: 🔒
scip Labs: https://www.scip.ch/en/?labs.20161013
Entry
Created: 12/13/2025 10:53Updated: 12/14/2025 14:21
Changes: 12/13/2025 10:53 (58), 12/14/2025 11:21 (31), 12/14/2025 14:21 (1)
Complete: 🔍
Submitter: jiahui2888
Cache ID: 216::103
Submit
Accepted
- Submit #712899: Tenda AC20 V16.03.08.12 Buffer Overflow (by github.com)
Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.
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