Buffer Overflow in Tenda AC10U Router from POST Request Parameter Handling
CVE-2025-15218

8.7HIGH

Key Information:

Vendor

Tenda

Status
Vendor
CVE Published:
30 December 2025

Badges

๐Ÿ‘พ Exploit Exists๐ŸŸก Public PoC

What is CVE-2025-15218?

A buffer overflow vulnerability exists in the Tenda AC10U router due to improper handling of the lanMask argument in the POST request for the AdvSetLanip function. When manipulated by an attacker, this could lead to unauthorized access and potentially allow for remote code execution. Publicly available exploits pose an increased risk, emphasizing the importance of updating firmware to safeguard against potential attacks.

Affected Version(s)

AC10U 15.03.06.48

AC10U 15.03.06.49

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.

References

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

  • ๐ŸŸก

    Public PoC available

  • ๐Ÿ‘พ

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

yhryhryhr_miemie (VulDB User)
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CVE-2025-15218 : Buffer Overflow in Tenda AC10U Router from POST Request Parameter Handling