Stack-Based Buffer Overflow in Linksys Wireless Routers
CVE-2025-9483

8.7HIGH

Key Information:

Vendor

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

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2025-9483?

A stack-based buffer overflow vulnerability exists in the singlePortForwardAdd function of the Linksys RE6250, RE6300, RE6350, RE6500, RE7000, and RE9000 routers. This issue is caused by improper handling of the ruleName, schedule, and inboundFilter arguments, allowing remote attackers to craft specific requests that exploit the flaw. Successful exploitation could lead to arbitrary code execution or system instability. Linksys has been notified of this vulnerability, but there has been no public response or indication of a patch.

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-2025-9483 - Proof of Concept

References

https://vuldb.com/?id.321398
vdb-entrytechnical-description
https://vuldb.com/?ctiid.321398
signaturepermissions-required
https://vuldb.com/?submit.634823
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

Bond_yes (VulDB User)
.
CVE-2025-9483 : Stack-Based Buffer Overflow in Linksys Wireless Routers