dbcve.org
AvalancheApplication · Ivanti

CVE-2023-41727

CRITICAL · 9.8 CVSS v3.1 Published 2023-12-19
Fix available
A fix is available. Upgrade to 6.4.2 or later.
See remediation →
100/100
Remediation priority · Urgent
Remotely reachable No privileges Zero-click

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 · unedited
An attacker sending specially crafted data packets to the Mobile Device Server can cause memory corruption which could result to a Denial of Service (DoS) or code execution.

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 confidence

A memory corruption vulnerability exists in Mobile Device Server where specially crafted data packets can trigger improper memory handling, potentially leading to denial of service or arbitrary code execution. The attack is network-exploitable via malicious packets.

MitigationApply vendor-provided patches immediately. If no patch available, restrict network access to the Mobile Device Server and implement input validation at network boundaries.

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
AvalancheApplication
Affected:< 6.4.2

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 checks

Work through these to decide whether this CVE applies to you.

  1. Verify Ivanti Avalanche installation
    Locate the Ivanti Avalanche installation directory or check installed programs on the system. Common paths include C:\Program Files\Ivanti\Avalanche or C:\Ivanti\Avalanche.
    Affected if Ivanti Avalanche is not found on the system - the vulnerability does not apply.
  2. Determine installed Avalanche version
    Locate the version information file or executable within the Avalanche installation directory. Check for a version file, or right-click the main executable and select Properties > Details. Alternatively, launch the Avalanche administration console and look for version information in the About or Help section.
    Affected if Unable to determine version - manual inspection required.
  3. Compare version against affected range
    Compare the installed version number to 6.4.2. Any version lower than 6.4.2 (such as 6.4.1, 6.4.0, 6.3.x, etc.) is affected.
    Affected if Installed version is lower than 6.4.2 - the system is vulnerable.
  4. Confirm Mobile Device Server is enabled
    Check if the Mobile Device Server component is running. This may be visible in the Avalanche administration console under services or server status, or check Windows Services for a service named 'Avalanche Mobile Device Server' or similar.
    Affected if Mobile Device Server is running and version is below 6.4.2 - the network-exploitable vulnerability is present.

The environment is affected if Ivanti Avalanche is installed with a version lower than 6.4.2 and the Mobile Device Server component is enabled and running.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

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 · scoped
Upgrade available Upgrade to 6.4.2 or later
Fixed in 6.4.2
Interim mitigation

Apply vendor-provided patches immediately. If no patch available, restrict network access to the Mobile Device Server and implement input validation at network boundaries.

Recommended fix High confidence

Avalanche 6.4.2 or later

  1. Navigate to the Wavelink download portal at download.wavelink.com
  2. Locate and download Avalanche version 6.4.2 or later
  3. Back up the current Avalanche configuration and database
  4. Stop the Avalanche Mobile Device Server service
  5. Install the updated Avalanche 6.4.2 package
  6. Restart the Avalanche Mobile Device Server service
  7. Verify the server is running and accessible

Generated from the published advisory — verify against the referenced sources before acting.

Fix this in Avalanche Scoped from the published advisory
  • Consultation4.0 h
  • Implementation8.0 h
  • Testing6.0 h
  • Review / QA4.0 h
22.0 hours of engineering $3,860
Get the upgrade done

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 locally
dbcve dependency scanner

Check whether your project pulls in CVE-2023-41727 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.

Get it on GitHub Scan in the browser

References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2023-41727 in production — separate from our analysis above.

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.

What this is

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.

What belongs here
  • 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