CVE-2025-62816
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 Samsung Mobile Processor Exynos 1280, 2200, 1380, 1480, 2400, 1580, and 2500. Unvalidated VS4L_VERTEXIOC_BOOTUP input leads to a denial of service.
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 denial of service vulnerability exists in Samsung Exynos mobile processors (1280, 2200, 1380, 1480, 2400, 1580, 2500) due to unvalidated input in the VS4L_VERTEXIOC_BOOTUP ioctl call within the graphics/video driver subsystem. The lack of proper input validation allows malformed requests to crash the system, causing a denial of service condition.
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
- Local
- Complexity
- Low
- Privileges
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- None
- Availability
- High
CVSS:3.1/AV:L/AC:L/PR:L/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 the processor modelCheck /proc/cpuinfo or device settings to determine the exact Exynos chip model (e.g., Exynos 1280, 1380, 1480, 1580, 2200, 2400, or 2500)Affected if The processor is any of the following: Exynos 1280, 1380, 1480, 1580, 2200, 2400, or 2500
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Locate the VS4L graphics driverExamine /dev or /sys/class/video4linux for VS4L device nodes, typically found under /dev/video* or /sys/class/video4linux/video* on affected devicesAffected if VS4L video device nodes exist and the driver is loaded (v4l2 or vs4l driver modules)
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Confirm driver supports VS4L_VERTEXIOC_BOOTUP ioctlCheck driver documentation, /proc/drivers, or inspect ioctl definitions in the video driver module (vs4l, exynos Video4Linux driver)Affected if The driver exposes the VS4L_VERTEXIOC_BOOTUP ioctl interface for vertex processing operations
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Verify graphics/video subsystem is activeCheck if the video driver is actively loaded and in use - examine /proc/modules for vs4l-related modules or check kernel config for CONFIG_VIDEO_V4L2 and related Exynos graphics supportAffected if The Exynos graphics/video driver subsystem is enabled and running
If your device contains any of the affected Exynos processors (1280, 1380, 1480, 1580, 2200, 2400, 2500) with the VS4L video driver subsystem active, the environment is vulnerable to denial of service via malformed VS4L_VERTEXIOC_BOOTUP ioctl requests.
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-supplied firmware/security updates from Samsung for affected Exynos processors. Device manufacturers and carriers must push these updates to end-user devices.
- 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-2025-62816 — 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-2025-62816 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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