OS Command Injection Vulnerability in Linksys Routers
CVE-2025-8828

5.3MEDIUM

Key Information:

Vendor

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

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2025-8828?

A significant security flaw has been identified in several Linksys router models, specifically within the ipv6cmd function located in the /goform/setIpv6 file. By manipulating various parameters such as Ipv6PriDns, Ipv6SecDns, and others, an attacker may perform OS command injection, allowing for remote execution of malicious commands. This vulnerability affects multiple router models up to a specified date and has been publicly disclosed, making systems susceptible to external threats. The vendor has been notified of this issue but has yet to respond.

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-2025-8828 - Proof of Concept

References

https://vuldb.com/?id.319362
vdb-entrytechnical-description
https://vuldb.com/?ctiid.319362
signaturepermissions-required
https://vuldb.com/?submit.626693
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

pjq123 (VulDB User)
.