CVE-2026-50679
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 · uneditedHeap-based buffer overflow in Microsoft Windows Search Component allows an authorized attacker to elevate privileges locally.
In the news
Third-party coverage- Microsoft July 2026 Patch Tuesday fixes massive 570 flaws, 3 zero-days
- Microsoft CVE Summary - Bleeping Computer
Surfaced from public web coverage — external links open in a new tab.
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 confidenceHeap-based buffer overflow vulnerability in the Windows Search Component allows a low-privilege authorized attacker to execute code with elevated (SYSTEM) privileges. The flaw exists in how the Search component handles memory when processing requests, enabling local 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< 10.0.26100.8875< 10.0.26200.8875< 10.0.28000.2525< 10.0.26100.33158CVSS 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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Verify Windows Search service statusOpen Services (services.msc) and locate the 'Windows Search' service, or run: Get-Service -Name WSearch in PowerShellAffected if The Windows Search service is set to Running or Manual startup and the Windows build is below the fixed versions listed below
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Check Windows build numberRun 'winver' or execute 'Get-ComputerInfo | Select-Object OsDisplayVersion,OsBuildNumber,WindowsVersion' in PowerShellAffected if Build number is below 26100.8875 (24h2), 26200.8875 (25h2), 28000.2525 (26h1), or 26100.33158 (Server 2025)
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Confirm Windows 11 or Server 2025 editionRun 'systeminfo' or 'Get-ComputerInfo | Select-Object OsName,OsVersion' to identify the exact Windows edition and versionAffected if The system is Windows 11 24h2, 25h2, 26h1, or Windows Server 2025, and the build number falls below the corresponding threshold
A system is affected if Windows Search service is enabled and the Windows build number is below the specific threshold for that version (26100.8875, 26200.8875, 28000.2525, or 26100.33158 depending on edition).
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 data10.0.26100.887510.0.26100.3315810.0.26200.8875
Apply the Microsoft security update for CVE-2026-50679 once released. As an interim control, consider disabling the Windows Search service if business requirements permit, or restrict user access to the Search service through privilege controls.
- Consultation3.0 h
- Implementation2.0 h
- Testing4.0 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 $3,072.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2026-50679 — 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-2026-50679 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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