CVE-2021-45345
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 · uneditedBuffer Overflow vulnerability found in En3rgy WebcamServer v.0.5.2 allows a remote attacker to cause a denial of service via the WebcamServer.exe file.
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 confidenceBuffer overflow vulnerability in En3rgy WebcamServer v.0.5.2 (WebcamServer.exe) allows remote attackers to cause denial of service via malformed input. The high CVSS score (7.5) indicates the vulnerability is exploitable over the network with low attack complexity.
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<= 0.5.2CVSS 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
- Network
- Complexity
- Low
- Privileges
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- None
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/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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Locate WebcamServer.exe installationSearch for WebcamServer.exe on the system using file search or check common installation directories (C:\Program Files\WebcamServer, C:\WebcamServer, or installation folder).Affected if The file WebcamServer.exe exists on the system.
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Verify installed versionRight-click WebcamServer.exe, select Properties, and check the File Version field under the Details tab. Alternatively, right-click and view Properties > Product Version.Affected if The version displayed is 0.5.2 or any version lower than 0.5.2 (the affected range is <= 0.5.2).
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Confirm if the service is runningOpen Task Manager or run 'tasklist /FI "IMAGENAME eq WebcamServer.exe"' in command prompt to check if WebcamServer.exe is currently active.Affected if WebcamServer.exe process is running and consuming resources.
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Check network exposureRun 'netstat -an | findstr LISTENING' or use PowerShell 'Get-NetTCPConnection -State Listen' to see which ports WebcamServer.exe is listening on. Identify if it is bound to 0.0.0.0 or an external IP rather than localhost only.Affected if The service is listening on network interfaces accessible to remote attackers (0.0.0.0 or external IP rather than 127.0.0.1).
If WebcamServer.exe version 0.5.2 or lower is installed and the service is running and exposed to the network, the environment is affected by CVE-2021-45345.
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 dataContact vendor for patched version; if unavailable, audit and recompile WebcamServer.exe with stack canaries and bounds checking enabled. Consider network segmentation to limit exposure until remediation.
- Consultation2.0 h
- Implementation4.0 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-2021-45345 — 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-2021-45345 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