CVE-2025-9482
Unknown Unknown - Not Provided
BaseFortify

Publication date: 2025-08-26

Last updated on: 2025-09-02

Assigner: VulDB

Description
A vulnerability was detected in Linksys RE6250, RE6300, RE6350, RE6500, RE7000 and RE9000 1.0.013.001/1.0.04.001/1.0.04.002/1.1.05.003/1.2.07.001. This impacts the function portRangeForwardAdd of the file /goform/portRangeForwardAdd. The manipulation of the argument ruleName/schedule/inboundFilter/TCPPorts/UDPPorts results in stack-based buffer overflow. The attack can be executed remotely. The exploit is now public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
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Meta Information
Published
2025-08-26
Last Modified
2025-09-02
Generated
2026-06-16
AI Q&A
2025-08-26
EPSS Evaluated
2026-06-14
NVD
CVE-2025-9482
EUVD
EUVD-2025-25793
Affected Vendors & Products
Showing 12 associated CPEs
Vendor Product Version / Range
linksys re6250_firmware 1.0.04.001
linksys re6250 *
linksys re6300_firmware 1.2.07.001
linksys re6300 *
linksys re6350_firmware 1.0.04.001
linksys re6350 *
linksys re7000_firmware 1.1.05.003
linksys re7000 *
linksys re9000_firmware 1.0.04.002
linksys re9000 *
linksys re6500_firmware 1.0.013.001
linksys re6500 *
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-119 The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.
CWE-121 A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function).
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Executive Summary

CVE-2025-9482 is a stack-based buffer overflow vulnerability in multiple Linksys range extender models. It occurs in the portRangeForwardAdd function when certain input parameters (ruleName, schedule, inboundFilter, TCPPorts, UDPPorts) are manipulated with data exceeding expected lengths. This causes a stack overflow, allowing remote attackers to crash the router or potentially execute arbitrary code. [1, 2]

Impact Analysis

This vulnerability can severely impact you by allowing remote attackers to crash your Linksys router or execute arbitrary code on it. This compromises the confidentiality, integrity, and availability of your device, potentially leading to unauthorized access, disruption of network services, or control over the device. [1, 2]

Detection Guidance

This vulnerability can be detected by monitoring for attempts to access or exploit the /goform/portRangeForwardAdd endpoint with unusually long or malformed parameters such as ruleName, schedule, inboundFilter, TCPPorts, or UDPPorts. Since the exploit is remote and publicly available, network intrusion detection systems (NIDS) can be configured to alert on suspicious HTTP POST requests targeting this endpoint with oversized payloads. Specific commands are not provided in the resources, but using tools like curl or wget to test the endpoint with crafted inputs or employing network monitoring tools to detect abnormal traffic patterns to /goform/portRangeForwardAdd may help identify exploitation attempts. [1, 2]

Mitigation Strategies

No known countermeasures or patches are available from the vendor, as Linksys did not respond to the disclosure. The recommended immediate mitigation is to replace affected devices (Linksys RE6250, RE6300, RE6350, RE6500, RE7000, and RE9000 with specified firmware versions) with alternative products. Additionally, restricting remote access to the vulnerable devices, disabling port forwarding features if possible, and monitoring network traffic for exploitation attempts can help reduce risk until replacement is possible. [2]

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