CVE-2022-44673
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 · uneditedWindows Client Server Run-time Subsystem (CSRSS) Elevation of Privilege Vulnerability
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 confidenceThis is an Elevation of Privilege vulnerability in the Windows Client Server Runtime Subsystem (CSRSS), a core Windows operating system component responsible for managing Win32 processes and console windows. The vulnerability allows an authenticated attacker to gain elevated privileges on the affected system, potentially escalating from a standard user to administrator or SYSTEM level access.
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 versions= 20h2= 21h1= 21h2= 22h2= 1607= 1809all 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
- High
- Privileges
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:L/AC:H/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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Identify Windows versionRun 'winver' or 'systeminfo' from command prompt to determine the exact Windows version and build numberAffected if The version displayed is Windows 10 (any build), Windows 8.1, Windows 7, or Windows Server 2008 - all of which are in the affected product list
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Check for security update KB5020030Open Control Panel > Programs and Features > View installed updates, or run 'wmic qfe list | findstr KB5020030' from command promptAffected if The update KB5020030 is NOT listed among installed updates - this means the system is likely unpatched for this CVE
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Verify CSRSS component versionLocate csrs.exe in C:\Windows\System32\, right-click and select Properties, then check the File Version tabAffected if The file version cannot be easily verified for this vulnerability; this step is informational only and should be cross-referenced with update status
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Check Windows Update statusOpen Settings > Windows Update > View update history to review recent security updates installed on the systemAffected if No security updates from November 2022 or later are present, suggesting the patch for this vulnerability has not been applied
The system is likely affected if it runs any version of Windows 10, 8.1, 7, or Server 2008 and lacks security update KB5020030 or subsequent relevant patches.
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 the Microsoft security update (KB5020030 or subsequent relevant patches) to all affected Windows systems through Windows Update or enterprise patch management infrastructure. Prioritize workstations and servers where untrusted users may have access.
- 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-2022-44673 — 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-2022-44673 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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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