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CWE-321Weakness · CWE-321

CVE-2025-34500

HIGH · 7.0 CVSS v4.0 Published 2025-10-24
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
75/100
Remediation priority · High
No privileges Zero-click

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 · unedited
Deck Mate 2's firmware update mechanism accepts packages without cryptographic signature verification, encrypts them with a single hard-coded AES key shared across devices, and uses a truncated HMAC for integrity validation. Attackers with access to the update interface - typically via the unit's USB update port - can craft or modify firmware packages to execute arbitrary code as root, allowing persistent compromise of the device's integrity and deck randomization process. Physical or on-premises access remains the most likely attack path, though network-exposed or telemetry-enabled deployments could theoretically allow remote exploitation if misconfigured. The vendor confirmed that firmware updates have been issued to correct these update-chain weaknesses and that USB update access has been disabled on affected units.

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 confidence

Deck Mate 2 firmware updates lack cryptographic signature verification, use a single hard-coded AES key across all devices, and employ a truncated HMAC for integrity checks. Attackers with USB update port access can craft malicious firmware packages to achieve root-level arbitrary code execution and persistently compromise the device.

MitigationDeploy vendor-issued firmware updates to all affected units and verify that USB update access remains disabled; for network-exposed deployments, ensure proper configuration and consider additional network segmentation controls.

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
Physical
Complexity
Low
Privileges
None
Authentication
X
User interaction
None
Scope
X

CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/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 checks

Work through these to decide whether this CVE applies to you.

  1. Identify the device model
    Locate the device label, web interface, or CLI output showing the hardware model name. Look for 'Deck Mate 2' in device documentation, sticker, or management console.
    Affected if The device is not a Deck Mate 2 unit, then this specific CVE does not apply.
  2. Determine the installed firmware version
    Access the device management interface (web UI, CLI, or console) and locate the firmware version information. Common paths: System > About, Firmware Info, or running 'show version' command.
    Affected if The device is confirmed as Deck Mate 2 - all firmware versions are affected until a patched version is released by the vendor.
  3. Verify USB update port accessibility
    Physically inspect the device for an exposed USB update port. Check device configuration settings for USB update functionality status (enabled/disabled). Look for USB-related settings in the administrative interface.
    Affected if USB update port is physically present and accessible, or USB update functionality is enabled in the configuration - the vulnerability is exploitable via this attack vector.
  4. Assess network exposure of the device
    Review network topology and firewall rules to determine if the device management interface or update ports are reachable from untrusted networks. Check for exposed IP addresses in network scans.
    Affected if The device is network-accessible from untrusted segments, combined with USB access, increases overall exploitability risk.

You are affected if the device is a Deck Mate 2 unit with any firmware version and has an accessible USB update port or is network-exposed with USB update capability enabled.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

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 data
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Deploy vendor-issued firmware updates to all affected units and verify that USB update access remains disabled; for network-exposed deployments, ensure proper configuration and consider additional network segmentation controls.

Have this fixed Scoped from the published advisory
  • Consultation6.0 h
  • Implementation10.0 h
  • Testing6.0 h
  • Review / QA4.0 h
26.0 hours of engineering $4,620
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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2025-34500 in production — separate from our analysis above.

No notes yet

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What this is

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.

What belongs here
  • 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