Hard-Coded Credentials Vulnerability in Tenda AC9 Administrative Interface
CVE-2025-9731

2LOW

Key Information:

Vendor

Tenda
Status
Ac9
Vendor
CVE Published:
31 August 2025

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2025-9731?

A vulnerability exists in the administrative interface of the Tenda AC9 router where hard-coded credentials are present in the /etc_ro/shadow file. This issue allows potential attackers with local access to exploit the system by leveraging these hard-coded credentials. The complexity of successfully executing this attack is rated as high due to the need for local access, but the publicly disclosed nature of the exploit may facilitate its unauthorized use.

Affected Version(s)

AC9 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-2025-9731 - Proof of Concept

References

https://vuldb.com/?id.322022
vdb-entry
https://vuldb.com/?ctiid.322022
signaturepermissions-required
https://vuldb.com/?submit.639748
third-party-advisory

CVSS V4

Score:
2
Severity:
LOW
Confidentiality:
Low
Integrity:
None
Availability:
None
Attack Vector:
Local
Attack Complexity:
High
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Yu_Bao (VulDB User)
JSON
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CVE-2025-9731 : Hard-Coded Credentials Vulnerability in Tenda AC9 Administrative Interface