Stack-Based Buffer Overflow in Tenda FH1202 Router
CVE-2025-7527

8.7HIGH

Key Information:

Vendor

Tenda
Status
Fh1202
Vendor
CVE Published:
13 July 2025

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2025-7527?

A stack-based buffer overflow has been identified in the Tenda FH1202 router, specifically within the function fromAdvSetWan in the /goform/AdvSetWan file. This vulnerability arises when the PPPOEPassword parameter is manipulated, allowing potential remote attackers to execute arbitrary code. The public disclosure of this flaw increases its risk, highlighting the importance of timely patching and heightened network security measures.

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Affected Version(s)

FH1202 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-2025-7527 - Proof of Concept

References

https://vuldb.com/?id.316223
vdb-entrytechnical-description
https://vuldb.com/?ctiid.316223
signaturepermissions-required
https://vuldb.com/?submit.612941
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_0x1 (VulDB User)
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