Stack-Based Buffer Overflow in Linksys Routers RE6250, RE6300, RE6350, RE6500, RE7000, RE9000
CVE-2025-9250

8.7HIGH

Key Information:

Vendor

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

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2025-9250?

A stack-based buffer overflow vulnerability has been discovered in several models of Linksys routers. This issue arises from improper handling of the parameter 'hint' in the function setPWDbyBBS located in the file /goform/setPWDbyBBS, enabling remote attackers to execute arbitrary code. The exploitation of this vulnerability is possible via the internet, and public exploits are already available. The vendor has been notified regarding this security concern, but no response has been received.

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-2025-9250 - Proof of Concept

References

https://vuldb.com/?id.320781
vdb-entrytechnical-description
https://vuldb.com/?ctiid.320781
signaturepermissions-required
https://vuldb.com/?submit.631523
third-party-advisory

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

pjqwudi (VulDB User)
.
CVE-2025-9250 : Stack-Based Buffer Overflow in Linksys Routers RE6250, RE6300, RE6350, RE6500, RE7000, RE9000