CVE-2025-64385
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 · uneditedThe equipment initially can be configured using the manufacturer's application, by Wi-Fi, by the web server or with the manufacturer’s software. Using the manufacturer's software, the device can be configured via UDP. Analyzing this communication, it has been observed that any aspect of the initial configuration can be changed by means of the device's MAC without the need for 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 · moderate confidenceA critical authentication bypass vulnerability exists in the manufacturer's software-based device configuration via UDP. An attacker can modify any aspect of the device's initial configuration (including network settings, credentials, or operational parameters) using only the target device's MAC address, with no authentication required.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
CVSS 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
- Authentication
- X
- User interaction
- None
- Scope
- X
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:H/SC:N/SI:L/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
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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Identify UDP services listening for configuration commandsUse netstat or ss commands to list all UDP ports in LISTEN state. Look for UDP services that handle device configuration, initial setup, or network provisioning (common ports may vary by manufacturer). Compare any found UDP configuration services against vendor documentation.Affected if A UDP service is listening that handles device configuration or initial setup without requiring authentication.
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Verify if MAC address is used as sole identifier for configurationCapture and analyze UDP traffic destined for the device on the configuration port using a packet sniffer (e.g., tcpdump, Wireshark). Examine whether UDP packets containing only the target device's MAC address can trigger configuration changes without any additional credentials or tokens.Affected if The device accepts and processes configuration commands in UDP packets using only MAC address as identification, with no authentication token required.
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Assess network exposure of the UDP configuration portCheck firewall rules and network segmentation to determine if the UDP port used for configuration is accessible from network segments other than a dedicated management VLAN. Document which IP addresses or subnets can reach this UDP service.Affected if The UDP configuration port is accessible from untrusted or non-management network segments.
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Confirm the device firmware versionAccess the device's administrative interface or use vendor-provided tools to retrieve the current firmware version. Compare this version against any vendor advisories or release notes for CVE-2025-64385.Affected if The installed firmware version matches or predates the vulnerable version range provided in vendor documentation.
Your environment is likely affected if a UDP-based configuration service is listening without authentication, accepts commands using only MAC address as identification, and is accessible from network segments outside your management infrastructure.
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 dataImplement strong authentication (e.g., shared secret, token-based, or cryptographic verification) for all UDP-based configuration commands and bind configuration privileges to authenticated sessions rather than MAC addresses alone.
- Consultation8.0 h
- Implementation24.0 h
- Testing12.0 h
- Review / QA8.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2025-64385 — 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-2025-64385 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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