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.

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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
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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)
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