Buffer Overflow in Tenda AC15 Router
CVE-2025-11387

8.7HIGH

Key Information:

Vendor

Tenda

Status
Vendor
CVE Published:
7 October 2025

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2025-11387?

A stack-based buffer overflow vulnerability has been identified in the Tenda AC15 router, specifically impacting the /goform/fast_setting_pppoe_set function. This flaw is triggered through the manipulation of the Password argument, allowing an attacker to execute a remote exploit. The vulnerability has been publicly disclosed, posing a significant risk to affected devices if not addressed promptly.

Affected Version(s)

AC15 15.03.05.18

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

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

wxhwxhwxh_mie (VulDB User)
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CVE-2025-11387 : Buffer Overflow in Tenda AC15 Router