Stack-Based Buffer Overflow in Tenda FH1201 and FH1206 HTTP Request Handler
CVE-2025-14994

8.7HIGH

Key Information:

Vendor

Tenda
Status
Fh1201
Fh1206
Vendor
CVE Published:
21 December 2025

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2025-14994?

A vulnerability exists in Tenda's FH1201 and FH1206 routers due to a flaw in the HTTP Request Handler. Specifically, a stack-based buffer overflow can occur when the 'webSiteId' argument is manipulated in the 'strcat' function of the /goform/webtypelibrary file. This vulnerability allows attackers to exploit the device remotely, enabling unauthorized access and potential system compromise. Exploitation details have been publicly shared, outlining the associated risks.

Affected Version(s)

FH1201 1.2.0.8(8155)

FH1201 1.2.0.14(408)

FH1206 1.2.0.8(8155)

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-2025-14994 - Proof of Concept

CVE-2025-14994 - Proof of Concept

References

https://vuldb.com/?id.337688
vdb-entrytechnical-description
https://vuldb.com/?ctiid.337688
signaturepermissions-required
https://vuldb.com/?submit.719153
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

z472421519 (VulDB User)
JSON
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CVE-2025-14994 : Stack-Based Buffer Overflow in Tenda FH1201 and FH1206 HTTP Request Handler