Stack-Based Buffer Overflow in Tenda AC500 by Tenda
CVE-2025-7586

8.7HIGH

Key Information:

Vendor

Tenda
Status
Ac500
Vendor
CVE Published:
14 July 2025

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2025-7586?

A vulnerability has been identified in the Tenda AC500, specifically within the formSetAPCfg function of the /goform/setWtpData file. The flaw arises from a stack-based buffer overflow caused by improper handling of the radio_2g_1 argument. This vulnerability allows for remote attacks, which could compromise the security of the device if exploited. The exploit details have been publicly disclosed, highlighting the need for immediate attention from users to prevent potential unauthorized access.

Affected Version(s)

AC500 2.0.1.9(1307)

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-2025-7586 - Proof of Concept

References

https://vuldb.com/?id.316285
vdb-entrytechnical-description
https://vuldb.com/?ctiid.316285
signaturepermissions-required
https://vuldb.com/?submit.615169
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)
.
CVE-2025-7586 : Stack-Based Buffer Overflow in Tenda AC500 by Tenda