CVE-2021-27483
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 · uneditedZOLL Defibrillator Dashboard, v prior to 2.2,The affected products contain insecure filesystem permissions that could allow a lower privilege user to escalate privileges to an administrative level user.
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 confidenceZOLL Defibrillator Dashboard versions prior to 2.2 contain insecure filesystem permissions that allow unprivileged users to modify executable files or configuration files, potentially enabling local privilege escalation to administrative level by replacing or manipulating protected system resources.
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< 2.2CVSS 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
- 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.
-
Determine installed ZOLL Defibrillator Dashboard versionLocate the application in Program Files or the installation directory, then check the version information in the application properties or any version file provided with the softwareAffected if The installed version is any version prior to 2.2 (e.g., 2.0, 2.1, 1.x)
-
Locate the application installation directoryIdentify the directory where ZOLL Defibrillator Dashboard is installed - typically found in Program Files or a dedicated ZOLL application folderAffected if The application directory exists and contains executable files (.exe) or configuration files (.xml, .ini, .config)
-
Verify filesystem permissions on executable filesRight-click the application executable files in the installation directory, select Properties, then Security tab. Check whether non-admin users or standard users have Write or Modify permissions to these filesAffected if Non-privileged user accounts (non-admin) have Write or Modify access to any .exe files in the application directory
-
Verify filesystem permissions on configuration filesRight-click configuration files (e.g., .xml, .ini, .config files) in the application directory, select Properties, then Security tab. Check whether non-admin users have Write or Modify permissionsAffected if Non-privileged user accounts have Write or Modify access to configuration files in the application directory
You are affected if the installed ZOLL Defibrillator Dashboard version is prior to 2.2 AND non-administrative users have write or modify permissions to executable or configuration files in the application directory, enabling potential privilege escalation.
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 data2.2
Apply vendor patch (v2.2) and review/adjust filesystem permissions on the application directory to follow least-privilege principles, ensuring non-admin users cannot write to executable or system directories.
- Consultation4.0 h
- Implementation3.0 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 $3,680.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2021-27483 — 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-2021-27483 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
Be the first to add a field note for this CVE — a mitigation you’ve verified, a version caveat, or a link to a working fix. Sign in above to contribute.
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