Buffer Overflow in Tenda HG10 Affecting Boa Web Server Functionality
CVE-2026-85110

8.7HIGH

Key Information:

Vendor

Tenda
Status
Hg10
Vendor
CVE Published:
3 September 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-85110?

A buffer overflow vulnerability has been discovered in the Tenda HG10 device, specifically within the formWlanSetup function of the Boa Web Server. The issue arises from inadequate validation of the 'ssid' parameter, allowing an attacker to manipulate the argument and potentially trigger a buffer overflow. This vulnerability enables remote exploitation, making it essential for users to apply the necessary security measures as an exploit is publicly available.

Affected Version(s)

HG10 300001138

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-2026-85110 - Proof of Concept

References

https://vuldb.com/vuln/398316
vdb-entrytechnical-description
https://vuldb.com/vuln/398316/cti
signaturepermissions-required
https://vuldb.com/cve/CVE-2026-85110
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

sunnyyaya (VulDB User)
.