Stack-Based Buffer Overflow in Tenda AC8 Wireless Routers
CVE-2025-5799

8.7HIGH

Key Information:

Vendor

Tenda
Status
Ac8
Vendor
CVE Published:
6 June 2025

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2025-5799?

A severe vulnerability exists in Tenda AC8 routers, specifically within the function fromSetWirelessRepeat located in the /goform/WifiExtraSet file. This flaw allows attackers to manipulate the wpapsk_crypto argument, leading to a stack-based buffer overflow. The nature of this vulnerability permits remote exploitation, putting users at risk. Public disclosure of this exploit has heightened concerns, emphasizing the need for immediate mitigation and patching.

Affected Version(s)

AC8 16.03.34.09

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-2025-5799 - Proof of Concept

References

https://vuldb.com/?id.311353
vdb-entrytechnical-description
https://vuldb.com/?ctiid.311353
signaturepermissions-required
https://vuldb.com/?submit.591270
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

wxhwxhwxh_ (VulDB User)
.
CVE-2025-5799 : Stack-Based Buffer Overflow in Tenda AC8 Wireless Routers