TOTOLINK N300RH 6.1c.1390_B20191101 HTTP POST Message /boafrm/formPortFw service_type buffer overflow
| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 8.4 | $0-$5k | 0.00 |
Summary
A vulnerability was found in TOTOLINK N300RH 6.1c.1390_B20191101 and classified as critical. This issue affects some unknown processing of the file /boafrm/formPortFw of the component HTTP POST Message Handler. Such manipulation of the argument service_type leads to buffer overflow. This vulnerability is traded as CVE-2025-6400. The attack may be launched remotely. Furthermore, there is an exploit available.
Details
A vulnerability was found in TOTOLINK N300RH 6.1c.1390_B20191101 and classified as critical. Affected by this issue is an unknown code of the file /boafrm/formPortFw of the component HTTP POST Message Handler. The manipulation of the argument service_type 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 available at github.com. This vulnerability is handled as CVE-2025-6400. 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.
The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2025-18805). If you want to get best quality of vulnerability data, you may have to visit VulDB.
Product
Vendor
Name
Version
License
Website
- Vendor: https://www.totolink.net/
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 |
|---|---|---|---|---|---|
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
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| Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
|---|---|---|---|---|---|
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
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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
06/20/2025 Advisory disclosed06/20/2025 VulDB entry created
06/26/2025 VulDB entry last update
Sources
Vendor: totolink.netAdvisory: github.com
Status: Not defined
CVE: CVE-2025-6400 (🔒)
GCVE (CVE): GCVE-0-2025-6400
GCVE (VulDB): GCVE-100-313394
EUVD: 🔒
scip Labs: https://www.scip.ch/en/?labs.20161013
Entry
Created: 06/20/2025 12:43Updated: 06/26/2025 01:01
Changes: 06/20/2025 12:43 (56), 06/21/2025 11:35 (1), 06/21/2025 16:43 (31), 06/26/2025 01:01 (1)
Complete: 🔍
Submitter: yuhongxiang
Cache ID: 216::103
Submit
Accepted
- Submit #597687: TOTOLINK N300RH_V4 V6.1c.1390_B20191101 Buffer Overflow (by yuhongxiang)
If you want to get best quality of vulnerability data, you may have to visit VulDB.
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