CVE-2025-48468
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 · uneditedSuccessful exploitation of the vulnerability could allow an attacker that has physical access to interface with JTAG to inject or modify firmware.
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 confidenceThis is a hardware security vulnerability where an attacker with physical access to a device's JTAG (Joint Test Action Group) debug interface can inject or modify firmware. JTAG provides low-level access to the processor and memory, allowing direct manipulation of the device's code.
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= 2.02b00= 2.02b00= 2.02b00CVSS 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
- Physical
- Complexity
- High
- Privileges
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:P/AC:H/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.
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Identify device model and firmware versionAccess the device web interface or use SNMP/serial to query the firmware version. For Wise 4010lan, 4050lan, or 4060lan, navigate to System > Firmware Information or check the startup logs.Affected if Firmware version is exactly 2.02b00 on any of the three affected models (Wise 4010lan, 4050lan, 4060lan)
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Locate JTAG header on the device PCBPower down the device and physically inspect the circuit board for a 20-pin or similar debug header, typically located near the processor or edge of the PCB. Refer to the device hardware manual for expected JTAG pinout locations.Affected if A JTAG header is present and physically accessible on the device circuit board
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Verify JTAG interface enablement statusCheck if the JTAG pins are muxed for debug function. This may require reading processor boot configuration pins, checking eFuse status via JTAG command tools (if accessible), or reviewing hardware design schematics if available.Affected if JTAG interface is enabled in hardware or not blown/disabled via eFuse configuration
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Inspect for hardware disable mechanismsExamine the board for blown eFuses related to JTAG disable, or verify that JTAG pins are multiplexed to GPIO function in the device pinout configuration.Affected if No eFuse disable is present and JTAG pins remain configured for debug access rather than GPIO or disabled state
A device is affected if it is an Advantech Wise 4010lan/4050lan/4060lan running firmware version 2.02b00 AND has an exposed JTAG interface that is hardware-enabled (not disabled via eFuse or pin configuration).
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 dataRemediate by implementing physical security controls to restrict access to JTAG ports, or by disabling/hardware-disabling JTAG interfaces in production devices (e.g., eFuse, pin multiplexing, or removing test headers).
- Consultation6.0 h
- Implementation12.0 h
- Testing6.0 h
- Review / QA4.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2025-48468 — 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-2025-48468 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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