Authenticated service interruption via oversized submit-url
Published Jun 16, 2025 · Updated Jun 17, 2025
Buffer overflow in TOTOLINK X15 1.0.0-B20230714.1105 allows remote authenticated users to interrupt router service via an HTTP POST request. The formSysLog handler copies an oversized submit-url value from form data without enforcing the destination buffer's bounds. A valid management session is required, and the published evidence demonstrates denial of service rather than code execution.
Summary
What happened
Buffer overflow in TOTOLINK X15 1.0.0-B20230714.1105 allows remote authenticated users to interrupt router service via an HTTP POST request. The formSysLog handler copies an oversized submit-url value from form data without enforcing the destination buffer's bounds. A valid management session is required, and the published evidence demonstrates denial of service rather than code execution.
The record
- CVE
- CVE-2025-6146
- Published
- Jun 16, 2025
- Updated
- Jun 17, 2025
- Vendor
- TOTOLINK
- Product
- X15
- Classifications
- CWE-119, CWE-120, T1499
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Jun 16, 2025CVE publishedPublication date reported by the CVE source.
- Jun 17, 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=1.0.0-B20230714.1105
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
- TOTOLINK X15 formSysLog HTTP POST PoCproof of concept · 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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