Buffer Overflow Vulnerability in Tenda AC23 by Tenda
CVE-2025-12596

8.7HIGH

Key Information:

Vendor

Tenda
Status
Ac23
Vendor
CVE Published:
2 November 2025

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2025-12596?

A security vulnerability has been identified in the Tenda AC23 router that affects the saveParentControlInfo function in the /goform/saveParentControlInfo file. This vulnerability allows an attacker to manipulate the Time argument, leading to a buffer overflow condition. The flaw enables remote exploitation, increasing the risk of unauthorized access and control over the device. This vulnerability has been publicly disclosed, highlighting the urgency for users to apply available patches and take protective measures.

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-2025-12596 - Proof of Concept

References

https://vuldb.com/?id.330891
vdb-entrytechnical-description
https://vuldb.com/?ctiid.330891
signaturepermissions-required
https://vuldb.com/?submit.677585
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-2025-12596 : Buffer Overflow Vulnerability in Tenda AC23 by Tenda