OS Command Injection Vulnerability in Linksys Wi-Fi Range Extenders
CVE-2025-8818

5.3MEDIUM

Key Information:

Vendor

Linksys
Status
Re6250
Re6300
Re6350
Re6500
Vendor
CVE Published:
10 August 2025

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2025-8818?

A vulnerability exists in several Linksys Wi-Fi range extenders, including the RE6250, RE6300, RE6350, RE6500, RE7000, and RE9000 models. This issue arises from improper handling of input parameters in the function setDFSSetting found in the '/goform/setLan' file, allowing an attacker to inject operating system commands. Due to the exposure of the vulnerability, it can be exploited remotely by adversaries. The vendor has been notified about the vulnerability, but has not yet provided a response. Users of affected products are advised to take immediate security measures.

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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.

CVE-2025-8818 - Proof of Concept

References

https://vuldb.com/?id.319352
vdb-entrytechnical-description
https://vuldb.com/?ctiid.319352
signaturepermissions-required
https://vuldb.com/?submit.626682
third-party-advisory

CVSS V4

Score:
5.3
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
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

pjqwudi (VulDB User)
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