CVE-2025-48808
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 · uneditedExposure of sensitive information to an unauthorized actor in Windows Kernel allows an authorized attacker to disclose information 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 · low confidenceAffected 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
- None
- Availability
- None
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
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
Windows 10 1507: build 10.0.10240.21073 | Windows 10 1607: build 10.0.14393.8246 | Windows 10 1809: build 10.0.17763.7558 | Windows 10 21h2: build 10.0.19044.6093 | Windows 10 22h2: build 10.0.19045.6093 | Windows 11 22h2: build 10.0.22621.5624 | Windows 11 23h2: build 10.0.22631.5624 | Windows 11 2
- Identify the current Windows version by running 'winver' or checking System Properties
- Determine the build number from the affected versions list (e.g., for Windows 10 22h2, current build must be less than 10.0.19045.6093)
- Apply the appropriate Windows Security Update from Microsoft Update Catalog or Windows Update that contains the fix for CVE-2025-48808
- Verify the update installed successfully by checking Windows Update history
- Confirm the build number has been updated to the fixed version or higher using 'winver'
Generated from the published advisory — verify against the referenced sources before acting.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2025-48808 — 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-2025-48808 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