Buffer Overflow Vulnerability in UTT 进取 520W Router Firmware
CVE-2026-2070

8.7HIGH

Key Information:

Vendor

Utt

Status
进取 520w
Vendor
CVE Published:
6 February 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-2070?

A buffer overflow vulnerability exists in the UTT 进取 520W router, specifically in the strcpy function located in the /goform/formPolicyRouteConf file. This flaw allows an attacker to manipulate the GroupName argument, potentially leading to unauthorized access and exploitation. The vulnerability can be exploited remotely, raising significant security concerns. Despite an early disclosure to the vendor, no response has been noted, making this a critical issue for users of the affected firmware version.

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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-2026-2070 - Proof of Concept

References

https://vuldb.com/?id.344637
vdb-entrytechnical-description
https://vuldb.com/?ctiid.344637
signaturepermissions-required
https://vuldb.com/?submit.745264
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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