Authenticated code execution via unchecked submit-url copy
Published Apr 28, 2025 · Updated Apr 28, 2025
Buffer overflow in /boafrm/formWlwds in TOTOLINK N150RT 3.4.0-B20190525 allows remote authenticated users to execute code or crash the service. The handler copies an oversized submit-url value into a fixed-size buffer without checking its length. Authenticated access to the router web interface is required; exploitation can execute code with router privileges or interrupt service.
Summary
What happened
Buffer overflow in /boafrm/formWlwds in TOTOLINK N150RT 3.4.0-B20190525 allows remote authenticated users to execute code or crash the service. The handler copies an oversized submit-url value into a fixed-size buffer without checking its length. Authenticated access to the router web interface is required; exploitation can execute code with router privileges or interrupt service.
The record
- CVE
- CVE-2025-3992
- Published
- Apr 28, 2025
- Updated
- Apr 28, 2025
- Vendor
- TOTOLINK
- Product
- N150RT
- Classifications
- CWE-120, CWE-119, T1190
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Apr 28, 2025CVE publishedPublication date reported by the CVE source.
- Apr 28, 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=3.4.0-B20190525
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
- BufferOverflow_formWlwds proof of conceptproof of concept · unverified
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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