Buffer Overflow Vulnerability in Tenda FH1205 Router
CVE-2025-6112

8.7HIGH

Key Information:

Vendor

Tenda
Status
Fh1205
Vendor
CVE Published:
16 June 2025

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2025-6112?

A buffer overflow vulnerability exists in the Tenda FH1205 router, specifically in the function 'fromadvsetlanip' of the '/goform/AdvSetLanip' script. This vulnerability arises from improper handling of the 'lanMask' parameter, allowing an attacker to manipulate memory and potentially execute arbitrary code. The attack can be executed remotely, posing significant risks to users if unpatched. It is essential for users to apply relevant updates and monitor for exploit attempts.

Affected Version(s)

FH1205 2.0.0.7

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-2025-6112 - Proof of Concept

References

https://vuldb.com/?id.312581
vdb-entrytechnical-description
https://vuldb.com/?ctiid.312581
signaturepermissions-required
https://vuldb.com/?submit.592472
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_tu (VulDB User)
.
CVE-2025-6112 : Buffer Overflow Vulnerability in Tenda FH1205 Router