Device crash via unchecked port-forwarding parameters
Published Aug 26, 2025 · Updated Aug 26, 2025
Stack-based buffer overflow in Linksys RE6250, RE6300, RE6350, RE6500, RE7000, and RE9000 allows remote authenticated users to crash devices. The mod_form.so portRangeForwardAdd function copies oversized ruleName, schedule, inboundFilter, TCPPorts, and UDPPorts values into a stack-local buffer without bounds checks, overwriting its return address. A valid management session is required; the published proof of concept causes persistent service interruption, while arbitrary-code execution is asserted but not demonstrated.
Summary
What happened
Stack-based buffer overflow in Linksys RE6250, RE6300, RE6350, RE6500, RE7000, and RE9000 allows remote authenticated users to crash devices. The mod_form.so portRangeForwardAdd function copies oversized ruleName, schedule, inboundFilter, TCPPorts, and UDPPorts values into a stack-local buffer without bounds checks, overwriting its return address. A valid management session is required; the published proof of concept causes persistent service interruption, while arbitrary-code execution is asserted but not demonstrated.
The record
- CVE
- CVE-2025-9482
- Published
- Aug 26, 2025
- Updated
- Aug 26, 2025
- Vendor
- Linksys
- Product
- RE6250
- Classifications
- CWE-119, CWE-121, T1499.004
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Aug 26, 2025CVE publishedPublication date reported by the CVE source.
- Aug 26, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=1.0.013.001
- Affected versionversion=1.0.04.001
- Affected versionversion=1.0.04.002
- Affected versionversion=1.1.05.003
- Affected versionversion=1.2.07.001
What conditions does exploitation require?
What is affected?
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
- Linksys portRangeForwardAdd crash proof of conceptproof of concept · demonstrated
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
See the directory against your own environment.
Your stack
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