Stack-Based Buffer Overflow in Linksys Wireless Extenders
CVE-2025-8822

8.7HIGH

Key Information:

Vendor

Linksys

Status
Vendor
CVE Published:
11 August 2025

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2025-8822?

A vulnerability has been detected in Linksys wireless extenders which manifests as a stack-based buffer overflow in the algDisable function of the /goform/setOpMode file. By manipulating the opMode parameter, an attacker can exploit this vulnerability remotely, potentially leading to unauthorized access or code execution. This issue affects multiple models, including the RE6250, RE6300, RE6350, RE6500, RE7000, and RE9000, and has been publicly disclosed. The vendor has been informed but has not provided a response.

Affected Version(s)

RE6250 20250801

RE6300 20250801

RE6350 20250801

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

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