CVE-2025-48816
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 · uneditedInteger overflow or wraparound in HID class driver allows an authorized attacker to elevate privileges locally.
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 confidenceInteger overflow vulnerability in the HID (Human Interface Device) class driver allows a local authorized attacker to corrupt memory and elevate privileges to a higher integrity level. The flaw occurs when the driver mishandles certain HID report processing operations, causing integer wraparound that leads to buffer overflow conditions exploitable for privilege escalation.
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< 10.0.10240.21073< 10.0.14393.8246< 10.0.17763.7558< 10.0.19044.6093< 10.0.19045.6093< 10.0.22621.5624< 10.0.22631.5624< 10.0.26100.4652CVSS 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
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:L/AC:L/PR:L/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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Check installed Windows build numberOpen Command Prompt or PowerShell and run 'winver' or 'systeminfo | findstr /B /C:"OS Version"' to obtain the full build number (e.g., 10.0.19045.6093)Affected if The displayed build number falls below any of the following thresholds: 10240.21073 (Win10 1507), 14393.8246 (Win10 1607), 17763.7558 (Win10 1809), 19044.6093 (Win10 21h2), 19045.6093 (Win10 22h2), 22621.5624 (Win11 22h2), 22631.5624 (Win11 23h2), or 26100.4652 (Win11 24h2)
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Verify Windows release version familyRun 'winver' to confirm whether the system is Windows 10 1507, 1607, 1809, 21h2, 22h2, or Windows 11 22h2, 23h2, or 24h2Affected if The system runs any of the listed Windows release versions and the build number is lower than the corresponding threshold from step 1
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Confirm presence of HID class driverOpen Device Manager, expand 'Human Interface Devices', and verify that HID-compliant drivers are loaded and active. Alternatively, run 'sc query hidclass' in Command PromptAffected if The HID class driver (hidclass.sys) is present and running, which is the default state on standard Windows installations
The environment is affected if the Windows build number is lower than the version-specific threshold for the detected Windows release, and the HID class driver is loaded (default state).
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.
dbcve · scoped10.0.10240.2107310.0.14393.824610.0.17763.7558
Apply the vendor-provided security update for the affected HID class driver. As a defensive measure, restrict unauthorized access to HID device interfaces and monitor for suspicious HID device connections in sensitive environments.
Apply the appropriate Windows Security Update (Cumulative) for your specific Windows version that includes the fix for CVE-2025-48816
- Open Settings > Update & Security > Windows Update and check for updates
- Install all available cumulative security updates for your Windows version
- Restart the system after applying updates
- Verify the installed update by running 'winver' to confirm the build number matches or exceeds the fixed version for your Windows release
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation8.0 h
- Implementation24.0 h
- Testing16.0 h
- Review / QA8.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2025-48816 — 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-2025-48816 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
- No spam, self-promotion, credentials, or personal data