OS Command Injection in Linksys RE6500, RE6250, RE6300, RE6350, RE7000, RE9000
CVE-2025-5439

5.3MEDIUM

Key Information:

Vendor

Linksys
Status
Re6500
Re6250
Re6300
Re6350
Vendor
CVE Published:
2 June 2025

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2025-5439?

A vulnerability exists in specific models of Linksys routers, including RE6500, RE6250, RE6300, RE6350, RE7000, and RE9000. The issue arises within the 'verifyFacebookLike' function, allowing unauthorized manipulation of the uid and accessToken arguments, which can lead to OS command injection. Attackers may exploit this vulnerability remotely, posing a significant threat to the affected devices. Despite early notifications, the vendor did not respond, raising concerns about ongoing risk.

Affected Version(s)

RE6250 1.0.013.001

RE6250 1.0.04.001

RE6250 1.0.04.002

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-2025-5439 - Proof of Concept

References

https://vuldb.com/?id.310778
vdb-entrytechnical-description
https://vuldb.com/?ctiid.310778
signaturepermissions-required
https://vuldb.com/?submit.584361
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)
.
CVE-2025-5439 : OS Command Injection in Linksys RE6500, RE6250, RE6300, RE6350, RE7000, RE9000