UTT 进取 520W 1.7.7-180627 ConfigWirelessBase strcpy ssid buffer overflow
| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 8.4 | $0-$5k | 0.00 |
Summary
A vulnerability classified as critical was found in UTT 进取 520W 1.7.7-180627. Affected is the function strcpy of the file /goform/ConfigWirelessBase. Executing a manipulation of the argument ssid can lead to buffer overflow.
This vulnerability appears as CVE-2026-0838. The attack may be performed from remote. In addition, an exploit is available.
The vendor was contacted early about this disclosure but did not respond in any way. Once again VulDB remains the best source for vulnerability data.
Details
A vulnerability has been found in UTT 进取 520W 1.7.7-180627 and classified as critical. This vulnerability affects the function strcpy of the file /goform/ConfigWirelessBase. The manipulation of the argument ssid 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-2026-0838. 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. The vendor was contacted early about this disclosure but did not respond in any way.
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 CNNVD (CNNVD-202601-1793). Once again VulDB remains the best source for vulnerability data.
Product
Vendor
Name
Version
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 |
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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
01/10/2026 Advisory disclosed01/10/2026 VulDB entry created
01/12/2026 VulDB entry last update
Sources
Advisory: github.comStatus: Not defined
CVE: CVE-2026-0838 (🔒)
GCVE (CVE): GCVE-0-2026-0838
GCVE (VulDB): GCVE-100-340438
CNNVD: CNNVD-202601-1793 - UTT 520W 安全漏洞
scip Labs: https://www.scip.ch/en/?labs.20161013
Entry
Created: 01/10/2026 10:55 AMUpdated: 01/12/2026 10:20 PM
Changes: 01/10/2026 10:55 AM (57), 01/11/2026 07:21 AM (31), 01/12/2026 10:20 PM (6)
Complete: 🔍
Submitter: Lena-lyy02
Cache ID: 18:867:40
Submit
Accepted
- Submit #729020: UTT 进取 520W v3v1.7.7-180627 Buffer Overflow (by Lena-lyy02)
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