Buffer Overflow Risk in UTT 进取 520W by UTT
CVE-2026-2066

8.7HIGH

Key Information:

Vendor

Utt

Status
进取 520w
Vendor
CVE Published:
6 February 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-2066?

A vulnerability has been found in the UTT 进取 520W device version 1.7.7-180627. The flaw resides in the strcpy function implemented in the /goform/formIpGroupConfig file. By manipulating the groupName argument, an attacker can trigger a buffer overflow, enabling a potential remote exploitation of the device. The exploit proofs have been publicly released, highlighting the urgent need for users to secure their devices. Despite being notified of the vulnerability, the vendor has yet to respond, leaving users at risk.

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-2026-2066 - Proof of Concept

References

https://vuldb.com/?id.344633
vdb-entrytechnical-description
https://vuldb.com/?ctiid.344633
signaturepermissions-required
https://vuldb.com/?submit.745260
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)
.