CVE-2025-54334
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 issue was discovered in the NPU driver in Samsung Mobile Processor Exynos 1280, 2200, 1380, 1480, 2400, 1580, 2500. There is a NULL Pointer Dereference of hdev in the __npu_vertex_bootup function.
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 NULL pointer dereference vulnerability exists in the NPU (Neural Processing Unit) driver for Samsung Exynos mobile processors (1280, 2200, 1380, 1480, 2400, 1580, 2500). The vulnerability occurs in the __npu_vertex_bootup function where the hdev pointer is dereferenced without prior NULL validation, potentially causing kernel panic or denial of service.
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 dataall versionsall versionsall versionsall versionsall versionsall versionsall versionsCVSS 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.
-
Identify the Exynos processor modelRun 'lscpu' or check /proc/cpuinfo to identify the processor. Look for model names containing Exynos 1280, 1380, 1480, 1580, 2200, 2400, or 2500.Affected if The processor is any of these seven Exynos models (1280, 1380, 1480, 1580, 2200, 2400, 2500).
-
Confirm NPU driver is presentCheck for NPU-related kernel modules or device nodes. Look in /dev for npu devices, or check 'lsmod' for npu-related modules, or examine /sys/class/misc for npu entries.Affected if The NPU driver is loaded and the NPU device is accessible on the system.
-
Check NPU firmware versionIf accessible, examine the NPU firmware version through vendor-specific interfaces (such as /sys/class/npu or proprietary Samsung diagnostic tools).Affected if Any firmware version is present on an affected Exynos model since all versions are vulnerable.
-
Verify NPU is in useCheck if any applications are actively using the NPU by monitoring for npu-related processes or checking NPU utilization through system diagnostics.Affected if The NPU driver is actively engaged or available on the device.
A system is affected if it contains any of the seven Exynos processors (1280, 1380, 1480, 1580, 2200, 2400, 2500) and has the NPU driver loaded, regardless of firmware version since all versions contain the flaw.
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 dataApply vendor firmware/patch from Samsung that adds proper NULL pointer validation for the hdev variable before dereferencing in the __npu_vertex_bootup function.
- Consultation4.0 h
- Implementation8.0 h
- Testing6.0 h
- Review / QA4.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $6,176.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2025-54334 — 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-2025-54334 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