Stack-Based Buffer Overflow in Tenda Router
CVE-2025-7549

8.7HIGH

Key Information:

Vendor

Tenda
Status
Fh1201
Vendor
CVE Published:
13 July 2025

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2025-7549?

A vulnerability in the Tenda FH1201 router has been identified, specifically within the frmL7ProtForm function located in the /goform/L7Prot file. This security issue is triggered through improper handling of the 'page' argument, which can lead to a stack-based buffer overflow. Such a flaw allows attackers to exploit the router remotely, potentially compromising the device and its network. Given that this exploit has been disclosed publicly, it is crucial for users of affected versions to apply necessary updates and mitigations to protect themselves.

Affected Version(s)

FH1201 1.2.0.14(408)

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-2025-7549 - Proof of Concept

References

https://vuldb.com/?id.316247
vdb-entrytechnical-description
https://vuldb.com/?ctiid.316247
signaturepermissions-required
https://vuldb.com/?submit.614973
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

panda_0xf1 (VulDB User)
.
CVE-2025-7549 : Stack-Based Buffer Overflow in Tenda Router