Stack-Based Buffer Overflow in Linksys Wireless Routers
CVE-2025-9482

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-2025-9482?

A stack-based buffer overflow vulnerability has been identified in multiple models of Linksys wireless routers, impacting the portRangeForwardAdd function in the /goform/portRangeForwardAdd file. By manipulating various parameters such as ruleName, schedule, inboundFilter, TCPPorts, and UDPPorts, attackers can trigger a buffer overflow from a remote location. This exploit is now publicly available, raising significant security concerns, especially since the vendor has not taken action or responded to early disclosure attempts.

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-2025-9482 - Proof of Concept

References

https://vuldb.com/?id.321397
vdb-entrytechnical-description
https://vuldb.com/?ctiid.321397
signaturepermissions-required
https://vuldb.com/?submit.634820
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-2025-9482 : Stack-Based Buffer Overflow in Linksys Wireless Routers