Stack-based Buffer Overflow in Tenda FH1205 Devices
CVE-2025-6111

8.7HIGH

Key Information:

Vendor

Tenda
Status
Fh1205
Vendor
CVE Published:
16 June 2025

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2025-6111?

A stack-based buffer overflow vulnerability exists in the Tenda FH1205 device due to improper handling of the 'page' argument in the 'fromVirtualSer' function located in the '/goform/VirtualSer' file. This security flaw can be exploited remotely, allowing attackers to manipulate the device's memory and potentially execute arbitrary code. Given the nature of this vulnerability, it poses a significant risk, as it can be targeted without physical access to the affected device. Users should take immediate action to secure their systems and apply any available patches.

Affected Version(s)

FH1205 2.0.0.7(775)

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-2025-6111 - Proof of Concept

References

https://vuldb.com/?id.312580
vdb-entrytechnical-description
https://vuldb.com/?ctiid.312580
signaturepermissions-required
https://vuldb.com/?submit.592471
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

yhryhryhr_tutu (VulDB User)
.
CVE-2025-6111 : Stack-based Buffer Overflow in Tenda FH1205 Devices