CVE-2026-0839

HIGH

UTT 520W < 1.7.7-180627 - Buffer Overflow via wepkey1 Argument in APSecurity Function

Title source: llm
STIX 2.1

Description

A weakness has been identified in UTT 进取 520W 1.7.7-180627. Affected is the function strcpy of the file /goform/APSecurity. Executing a manipulation of the argument wepkey1 can lead to buffer overflow. The attack may be performed from remote. The exploit has been made available to the public and could be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.

References (4)

Core 4
Core References
Third Party Advisory, VDB Entry vdb-entry technical-description
https://vuldb.com/?id.340439
Permissions Required, VDB Entry signature permissions-required
https://vuldb.com/?ctiid.340439
Third Party Advisory, VDB Entry third-party-advisory
https://vuldb.com/?submit.729028

Scores

CVSS v3 8.8
EPSS 0.0097
EPSS Percentile 57.3%
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