CVE-2021-41065
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 Listary through 6. An attacker can create a \\.\pipe\Listary.listaryService named pipe and wait for a privileged user to open a session on the Listary installed host. Listary will automatically access the named pipe and the attacker will be able to duplicate the victim's token to impersonate him. This exploit is valid in certain Windows versions (Microsoft has patched the issue in later Windows 10 builds).
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 · high confidenceA named pipe impersonation vulnerability in Listary allows an attacker who can create a malicious pipe at \\\\.\\pipe\\Listary.listaryService to intercept and duplicate a privileged user's token when Listary automatically connects to it, enabling token theft and 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<= 6CVSS 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
- Required
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/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 if Listary is installedOpen Programs and Features (appwiz.cpl) or check the installation directory for Listary. Look for 'Listary' in the installed programs list.Affected if Listary is found installed on the system
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Identify the installed Listary versionRight-click on the Listary executable (typically in Program Files or Program Files (x86)\Listary) and view Properties, or check the version in the Programs and Features list.Affected if The version is 6 or lower (any version up to and including 6)
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Verify if Listary is currently runningOpen Task Manager and look for Listary.exe in the Processes tab, or check if the Listary service is active.Affected if Listary process or service is actively running on the system
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Confirm the vulnerable pipe service is activeOpen a command prompt and run 'tasklist /FI "IMAGENAME eq Listary.exe"' to verify the Listary process is loaded in memory.Affected if Listary.exe is running as a process
The system is affected if Listary version 6 or lower is installed and currently running, allowing a local attacker with pipe creation privileges to intercept the connection at \\.\pipe\Listary.listaryService.
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 Windows security updates (later Windows 10 builds contain the fix) and update Listary to the latest version to prevent automatic connection to untrusted named pipes.
- Consultation2.0 h
- Implementation1.0 h
- Testing2.0 h
- Review / QA1.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2021-41065 — 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-2021-41065 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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