CVE-2026-0840

HIGH

UTT 520w Firmware < 1.7.7-180627 - Memory Corruption

Title source: rule
STIX 2.1

Description

A security vulnerability has been detected in UTT 进取 520W 1.7.7-180627. Affected by this vulnerability is the function strcpy of the file /goform/formConfigNoticeConfig. The manipulation of the argument timestart leads to buffer overflow. It is possible to initiate the attack remotely. The exploit has been disclosed publicly and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

Scores

CVSS v3 8.8
EPSS 0.0005
EPSS Percentile 15.5%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation poc
Automatable no
Technical Impact total

Details

CWE
CWE-119 CWE-120
Status published
Products (1)
utt/520w_firmware < 1.7.7-180627
Published Jan 11, 2026
Tracked Since Feb 18, 2026