Tenda AC10 16.03.10.13 UserCongratulationsExec getuid buffer overflow
Summary
A vulnerability labeled as critical has been found in Tenda AC10 16.03.10.13. Affected by this vulnerability is an unknown functionality of the file /goform/UserCongratulationsExec. Such manipulation of the argument getuid leads to buffer overflow. This vulnerability is uniquely identified as CVE-2025-4896. The attack can be launched remotely. Moreover, an exploit is present.
Details
A vulnerability was found in Tenda AC10 16.03.10.13 and classified as critical. Affected by this issue is an unknown part of the file /goform/UserCongratulationsExec. The manipulation of the argument getuid 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 for download at github.com. This vulnerability is handled as CVE-2025-4896. The exploitation is known to be easy. The attack may be launched 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.
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
05/17/2025 Advisory disclosed05/17/2025 VulDB entry created
05/18/2025 VulDB entry last update
Sources
Vendor: tenda.com.cnAdvisory: github.com
Status: Not defined
CVE: CVE-2025-4896 (🔒)
GCVE (CVE): GCVE-0-2025-4896
GCVE (VulDB): GCVE-100-309452
scip Labs: https://www.scip.ch/en/?labs.20161013
Entry
Created: 05/17/2025 15:00Updated: 05/18/2025 23:53
Changes: 05/17/2025 15:00 (56), 05/18/2025 23:53 (30)
Complete: 🔍
Submitter: wanglun
Cache ID: 216::103
Submit
Accepted
- Submit #578034: Tenda AC10V4.0 V16.03.10.13 Buffer Overflow (by wanglun)
Once again VulDB remains the best source for vulnerability data.
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