CVE-2026-0838

A security flaw has been discovered in UTT 进取 520W 1.7.7-180627. This impacts the function strcpy of the file /goform/ConfigWirelessBase. Performing a manipulation of the argument ssid results in buffer overflow. The attack is possible to be carried out remotely. The exploit has been released to the public and may be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.

CVSS v3 8.8 HIGH
CVSS v2.0 9.0 HIGH

8.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.8 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

9.0^/10

CVSS v2.0 : HIGH

Vector : AV:N/AC:L/Au:S/C:C/I:C/A:C

Exploitability : 8.0 / Impact : 10.0

Access Vector NETWORK

Access Complexity LOW

Authentication SINGLE

Confidentiality Impact COMPLETE

Integrity Impact COMPLETE

Availability Impact COMPLETE

References

Link	Resource
https://github.com/Lena-lyy/cve/blob/main/1223/28.md	Exploit Third Party Advisory
https://vuldb.com/?ctiid.340438	Permissions Required VDB Entry
https://vuldb.com/?id.340438	Third Party Advisory VDB Entry
https://vuldb.com/?submit.729020	Third Party Advisory VDB Entry

Configurations

Configuration 1 (hide)

AND

cpe:2.3:o:utt:520w_firmware:*:*:*:*:*:*:*:*

cpe:2.3:h:utt:520w:3.0:*:*:*:*:*:*:*

History

No history.

Information

Published : 2026-01-11 06:15

Updated : 2026-01-13 22:02

NVD link : CVE-2026-0838

Mitre link : CVE-2026-0838

CVE.ORG link : CVE-2026-0838

JSON object : View

Products Affected

utt

520w_firmware
520w

CWE

CWE-119

Improper Restriction of Operations within the Bounds of a Memory Buffer

CWE-120

Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

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