CVE-2025-63362
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 · uneditedWaveshare RS232/485 TO WIFI ETH (B) Serial to Ethernet/Wi-Fi Gateway Firmware V3.1.1.0: HW 4.3.2.1: Webpage V7.04T.07.002880.0301 allows attackers to set the Administrator password and username as blank values, allowing attackers to bypass authentication.
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 · high confidenceThe Waveshare RS232/485 TO WIFI ETH (B) gateway firmware V3.1.1.0 contains an authentication bypass vulnerability where the web interface allows setting blank (empty) Administrator username and password values. Attackers can exploit this by directly setting empty credentials through the administrative interface, bypassing authentication entirely and gaining full administrative control of the device.
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= 3.1.1.0CVSS 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
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:N/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.
-
Identify the device model and firmware versionAccess the web management interface of the device and navigate to the System Information or Status page to view the device model and firmware version. Compare the firmware version to 3.1.1.0.Affected if The device is a Waveshare RS232/485 TO WIFI ETH (B) gateway running firmware version 3.1.1.0.
-
Confirm web interface is accessibleAttempt to access the device web interface via its IP address on the standard HTTP/HTTPS ports (typically 80/443). Note whether the interface loads and is reachable.Affected if The web management interface is exposed and reachable on the network.
-
Check for blank Administrator credentialsNavigate to the Administrator or User Management section of the web interface. Inspect the Administrator account settings to determine if the username and password fields are blank or set to empty values.Affected if The Administrator account has an empty (blank) username and/or password configured in the web interface.
-
Verify authentication bypass conditionAttempt to access restricted administrative pages or functions without providing credentials, or by providing empty credentials in the login form. Observe whether access is granted without proper authentication.Affected if The device grants administrative access without requiring valid credentials, allowing full administrative control without authentication.
A user is affected if they are running the Waveshare RS232/485 TO WIFI ETH (B) gateway firmware version 3.1.1.0, the web interface is network-accessible, and the device accepts blank credentials allowing unauthenticated administrative access.
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 dataUpdate to a patched firmware version if available; otherwise, isolate the device behind a firewall or VPN, disable remote web management exposure to untrusted networks, and monitor for unauthorized administrative access.
- Consultation3.0 h
- Implementation4.0 h
- Testing2.0 h
- Review / QA1.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $2,880.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2025-63362 — 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-2025-63362 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
Be the first to add a field note for this CVE — a mitigation you’ve verified, a version caveat, or a link to a working fix. Sign in above to contribute.
A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.
- 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
- No spam, self-promotion, credentials, or personal data