CVE-2026-0838

HIGH
2026-01-11 [email protected]
8.8
CVSS 3.1
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CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

3
Analysis Generated
Mar 12, 2026 - 21:54 vuln.today
PoC Detected
Jan 13, 2026 - 22:02 vuln.today
Public exploit code
CVE Published
Jan 11, 2026 - 06:15 nvd
HIGH 8.8

Description

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.

Analysis

Remote code execution in UTT 520W firmware 1.7.7-180627 via buffer overflow in the wireless configuration endpoint allows authenticated attackers to achieve complete system compromise with high integrity and availability impact. Public exploit code exists for this vulnerability, and the vendor has not provided a patch despite early disclosure notification. …

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Remediation

Within 7 days: Identify all affected systems and apply vendor patches promptly. Monitor vendor channels for patch availability.

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Priority Score

64
Low Medium High Critical
KEV: 0
EPSS: +0.1
CVSS: +44
POC: +20

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CVE-2026-0838 vulnerability details – vuln.today

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