Buffer Overflow Vulnerability in UTT HiPER 1250GW Device
CVE-2026-4862

8.7HIGH

Key Information:

Vendor

Utt

Status
Hiper 1250gw
Vendor
CVE Published:
26 March 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-4862?

A security vulnerability has been identified in the UTT HiPER 1250GW device, specifically within the function strcpy located in the /goform/formConfigDnsFilterGlobal file of the Parameter Handler component. This flaw allows an attacker to manipulate the GroupName argument, triggering a buffer overflow. The remote exploitation of this vulnerability poses a significant risk, and the details regarding this exploit have been disclosed publicly.

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Affected Version(s)

HiPER 1250GW 3.2.7-210907-180535

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-2026-4862 - Proof of Concept

References

https://vuldb.com/?id.353193
vdb-entrytechnical-description
https://vuldb.com/?ctiid.353193
signaturepermissions-required
https://vuldb.com/?submit.776230
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

maple_s (VulDB User)
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