CVE-2025-3496
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 · uneditedAn unauthenticated remote attacker can cause a buffer overflow which could lead to unexpected behaviour or DoS via Bluetooth or RS-232 interface.
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 device's Bluetooth or RS-232 interface that allows unauthenticated remote attackers to overflow a buffer, potentially causing unexpected behavior or denial of service. The attack does not require authentication and can be carried out remotely via these interfaces.
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
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- None
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/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 Bluetooth interface presence and statusCheck device configuration or network settings to determine if Bluetooth is enabled. On Linux systems, this can be done with 'hciconfig' or checking 'rfkill list'. On Windows, check Device Manager or Bluetooth settings.Affected if Bluetooth is enabled and accessible on the device
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Identify RS-232 interface presence and accessibilityCheck device hardware specifications and configuration for RS-232 (serial) ports. On Linux, check '/dev/ttyS*' or '/dev/ttyUSB*' entries. On Windows, check COM ports in Device Manager.Affected if RS-232 interface exists and is connected or accessible
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Verify interface network exposureDetermine if Bluetooth is in discoverable or connectable mode, or if RS-232 is connected to a network-accessible serial-to-Ethernet adapter. Check firewall rules and network segmentation for these interfaces.Affected if Bluetooth is in discoverable mode or RS-232 is exposed over network beyond physical access only
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Check firmware version with vendorLocate the device firmware version in system settings or by querying the device, then compare against vendor's affected version list or contact vendor directly for confirmation.Affected if Firmware version matches vendor's affected version range for this CVE
A device is affected if it has an enabled Bluetooth or RS-232 interface and is running a firmware version within the vendor's affected range, with these interfaces accessible beyond isolated local physical 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 dataRestrict access to Bluetooth and RS-232 interfaces through network segmentation or physical access controls, and apply vendor-provided patches when available.
- Consultation4.0 h
- Implementation8.0 h
- Testing6.0 h
- Review / QA2.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $5,600.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2025-3496 — 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-2025-3496 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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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