Buffer Overflow Vulnerability in Tenda AC7 and AC18 Products
CVE-2025-9023

8.7HIGH

Key Information:

Vendor

Tenda
Status
Ac7
Ac18
Vendor
CVE Published:
15 August 2025

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2025-9023?

A buffer overflow vulnerability has been identified in the Tenda AC7 and AC18 routers, specifically within the formSetSchedLed function in the SetLEDCfg endpoint. Malicious actors can exploit this vulnerability remotely by manipulating the Time parameter, potentially leading to unauthorized access and system compromise. The details of this vulnerability have been publicly disclosed, heightening the risk for users of affected versions. Immediate action is advised to assess and mitigate any possible threats.

Affected Version(s)

AC18 15.03.05.19

AC18 15.03.06.44

AC7 15.03.05.19

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-2025-9023 - Proof of Concept

References

https://vuldb.com/?id.320088
vdb-entrytechnical-description
https://vuldb.com/?ctiid.320088
signaturepermissions-required
https://vuldb.com/?submit.629692
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

zezhifu (VulDB User)
.
CVE-2025-9023 : Buffer Overflow Vulnerability in Tenda AC7 and AC18 Products