Authenticated device crash via unchecked stack copy
Published Aug 23, 2025 · Updated Aug 25, 2025
Stack overflow in Linksys RE6250, RE6300, RE6350, RE6500, RE7000, and RE9000 allows remote authenticated users to crash devices. The mod_form.so ipRangeBlockManageRule function directly copies oversized rule-name, schedule, or address input into a local stack buffer, overwriting its return address. A valid management session is required; the demonstrated consequence is persistent service loss, while arbitrary code execution is claimed but not demonstrated.
Summary
What happened
Stack overflow in Linksys RE6250, RE6300, RE6350, RE6500, RE7000, and RE9000 allows remote authenticated users to crash devices. The mod_form.so ipRangeBlockManageRule function directly copies oversized rule-name, schedule, or address input into a local stack buffer, overwriting its return address. A valid management session is required; the demonstrated consequence is persistent service loss, while arbitrary code execution is claimed but not demonstrated.
The record
- CVE
- CVE-2025-9361
- Published
- Aug 23, 2025
- Updated
- Aug 25, 2025
- Vendor
- Linksys
- Product
- RE6250
- Classifications
- CWE-121, CWE-119, T1499
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Aug 23, 2025CVE publishedPublication date reported by the CVE source.
- Aug 25, 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
- ipRangeBlockManageRule oversized rule-name proof of conceptfunctional · demonstrated
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
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Your stack
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