CVE-2026-0839

What it is

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.

At a glance

Exploitability

Can be exploited over the network with a low-privilege account. High risk of data exposure, data tampering, service disruption.

Exploit odds

1.1% chance of exploitation in the next 30 days (EPSS).

Fix

No patch or advisory is linked yet. Look at mitigations or restrict exposure.

Timeline

1. 2026-01-11 06:15 UTC PublishedDisclosed publicly on CVE.org and NVD
2. 2026-06-17 10:11 UTC Last updatedMost recent change to the record

Details

Published

2026-01-11 06:15 UTC

Last modified

2026-06-17 10:11 UTC

Exploit probability

1.1% · EPSS, next 30 days

Weakness

CWE-119 · Buffer errors

Record status

Analyzed

Affected

• Utt 520w Firmware ≤ 1.7.7-180627

Attack profile CVSS 4.0 · 7.4

Attack vector

Network

Complexity

Low

Attack requirements

None

Privileges needed

Low

User interaction

None

Confidentiality

High

Integrity

High

Availability

High