Vulnerability · Published Jan 11, 2026 · Assigned by VulDB

CVE-2026-0839UTT 进取 520W APSecurity strcpy buffer overflow

High 8.8

In plain English

A high-severity buffer overflow in 进取 520W from UTT. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 1.1% (higher than 65% of all known vulnerabilities).

Severity (CVSS 3.1)8.8High
Exploit odds (30 days)1.1%top 34.9% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known

Official 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.

Affected products (as reported)

VendorProductVersions
UTT 进取 520W 1.7.7-180627

Weakness: CWE-120, CWE-119 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R

References