Buffer Overflow Vulnerability in UTT 进取 520W Router
CVE-2026-2067

8.7HIGH

Key Information:

Vendor

Utt

Status
进取 520w
Vendor
CVE Published:
6 February 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-2067?

A security vulnerability has been identified in the UTT 进取 520W router with version 1.7.7-180627. This flaw specifically lies within the strcpy function in the /goform/formTimeGroupConfig file, where improper handling of the 'year1' argument leads to a buffer overflow. This vulnerability can be exploited remotely, potentially allowing an attacker to execute arbitrary code on the affected device. Despite early notifications sent to the vendor regarding this disclosure, no response was received, making this an urgent concern for users of this device.

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Deploy the Patch

Affected Version(s)

进取 520W 1.7.7-180627

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-2067 - Proof of Concept

References

https://vuldb.com/?id.344634
vdb-entrytechnical-description
https://vuldb.com/?ctiid.344634
signaturepermissions-required
https://vuldb.com/?submit.745261
third-party-advisory

CVSS V4

Score:
8.7
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

cymiao (VulDB User)
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