Buffer Overflow Vulnerability in Tenda AC23 Router
CVE-2025-12595

8.7HIGH

Key Information:

Vendor

Tenda
Status
Ac23
Vendor
CVE Published:
2 November 2025

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2025-12595?

A buffer overflow vulnerability has been identified in the Tenda AC23 router, specifically within the formSetVirtualSer function in the /goform/SetVirtualServerCfg file. This issue allows an attacker to manipulate the argument list, potentially enabling them to execute arbitrary code remotely. The vulnerability poses a significant risk as exploit code has been publicly disclosed, which could lead to unauthorized access or control over the affected device.

Affected Version(s)

AC23 16.03.07.52

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-2025-12595 - Proof of Concept

References

https://vuldb.com/?id.330890
vdb-entrytechnical-description
https://vuldb.com/?ctiid.330890
signaturepermissions-required
https://vuldb.com/?submit.677581
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

LX-LX (VulDB User)
JSON
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CVE-2025-12595 : Buffer Overflow Vulnerability in Tenda AC23 Router