CVE-2025-5738
Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.
NVD · uneditedA vulnerability was found in TOTOLINK X15 1.0.0-B20230714.1105. It has been rated as critical. Affected by this issue is some unknown functionality of the file /boafrm/formStats of the component HTTP POST Request Handler. The manipulation of the argument submit-url leads to buffer overflow. The attack may be launched remotely. The exploit has been disclosed to the public and may be used.
Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.
dbcve analysis · moderate confidenceA buffer overflow vulnerability exists in the TOTOLINK X15 router firmware (version 1.0.0-B20230714.1105) within the HTTP POST Request Handler's formStats function. The 'submit-url' parameter is not properly bounds-checked, allowing an attacker to overflow a buffer by sending a specially crafted HTTP POST request. This remote network-exploitable flaw could potentially allow arbitrary code execution.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.
NVD · CPE data= 1.0.0-b20230714.1105CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.
From the vector- Attack vector
- Network
- Complexity
- Low
- Privileges
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.
dbcve checksWork through these to decide whether this CVE applies to you.
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Confirm router model is TOTOLINK X15Access the router's web interface or check the device label/marketing materials to verify the model number is TOTOLINK X15Affected if Router model is not TOTOLINK X15 - this CVE does not apply
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Check installed firmware versionLog into the router's web administration interface and navigate to the Status or System Information page to view the firmware version. Alternatively, check the firmware file name or header if you have direct access to the firmware binaryAffected if Firmware version is exactly 1.0.0-B20230714.1105 - this is the only affected version
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Verify HTTP web interface is accessibleAttempt to access the router's IP address via HTTP (port 80) or HTTPS (port 443) from a browser to confirm the web management interface is runningAffected if The web interface is not running or not accessible - the vulnerable formStats function would not be exposed
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Confirm remote administrative access is enabledCheck the router's web interface under settings such as 'Remote Management', 'Remote Access', or 'Admin Access' to see if remote access from WAN/outside the local network is permittedAffected if Remote management is enabled and the web interface is exposed to untrusted networks - this allows remote exploitation of the buffer overflow
The environment is affected only if the device is a TOTOLINK X15 router running firmware version 1.0.0-B20230714.1105 with its HTTP web management interface accessible remotely.
Generated from the published advisory. Verify against your own configuration.
Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.
From vendor dataApply any available firmware update from TOTOLINK; if no update exists, disable remote administrative access to the router's web interface and restrict network exposure to trusted users only.
- Consultation2.0 h
- Implementation2.0 h
- Testing1.0 h
- Review / QA1.0 h
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Free · runs locallyCheck whether your project pulls in CVE-2025-5738 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2025-5738 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- Verified mitigations, workarounds, and config changes
- Version or environment caveats, and links to real fixes
- No weaponised exploit code, or anything meant to cause harm
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