CVE-2024-27981
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 · uneditedA Command Injection vulnerability found in a Self-Hosted UniFi Network Servers (Linux) with UniFi Network Application (Version 8.0.28 and earlier) allows a malicious actor with UniFi Network Application Administrator credentials to escalate privileges to root on the host device. Affected Products: UniFi Network Application (Version 8.0.28 and earlier) . Mitigation: Update UniFi Network Application to Version 8.1.113 or later.
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 command injection vulnerability in UniFi Network Application versions 8.0.28 and earlier allows an authenticated administrator to execute arbitrary commands on the underlying Linux host. The flaw enables privilege escalation from the application administrator account to root-level access on the host system.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
CVSS 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
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:N/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 the installed UniFi Network Application versionCheck the version through the system package manager (dpkg -l | grep unifi or rpm -q unifi), Docker container image tag, or by logging into the web interface and viewing the system information page under the Settings or Dashboard sectionAffected if The installed version is 8.0.28 or earlier
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Confirm administrator authentication is availableVerify that the UniFi Network Application web interface is running and accessible, and that at least one administrator account is configured. This can be checked by attempting to access the login page on the default HTTPS port (typically 443 or 8443)Affected if The web interface accepts administrator credentials, which is required for the authenticated command injection to be exploitable
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Verify the application is running on LinuxConfirm the host operating system is Linux by running 'uname -a' or checking the OS details via 'cat /etc/os-release' on the server where UniFi Network Application is installedAffected if The application runs on a Linux host, which is the target platform for the privilege escalation aspect of this vulnerability
Your environment is affected if UniFi Network Application version 8.0.28 or earlier is installed, the web management interface with administrator accounts is accessible, and the application is running on a Linux host.
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.
dbcve · scopedUpdate UniFi Network Application to version 8.1.113 or later to remediate this vulnerability.
UniFi Network Application Version 8.1.113 or later
- Backup the UniFi Network Application data directory and configuration files before starting the upgrade process
- Stop the UniFi Network Application service to prevent data corruption during upgrade
- Download UniFi Network Application version 8.1.113 or later from the official Ubiquiti downloads page
- Install the new version using the appropriate package manager or installation method for your Linux distribution
- Start the UniFi Network Application service after installation completes
- Verify the application is running and accessible by logging into the UniFi Network Controller interface
- Confirm the installed version shows 8.1.113 or later in the controller UI or via command line
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation2.0 h
- Implementation2.0 h
- Testing3.0 h
- Review / QA1.0 h
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Free · runs locallyCheck whether your project pulls in CVE-2024-27981 — 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-2024-27981 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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