CVE-2024-23530
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 out-of-bounds read vulnerability in WLAvalancheService component of Ivanti Avalanche before 6.4.3, in certain conditions can allow an unauthenticated remote attacker to read sensitive information in memory.
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 confidenceAn out-of-bounds read vulnerability exists in the WLAvalancheService component of Ivanti Avalanche versions prior to 6.4.3. Under certain conditions, an unauthenticated remote attacker can exploit this flaw to read sensitive information from memory, potentially exposing credentials, session tokens, or other confidential data.
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< 6.4.3.528CVSS 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
- None
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
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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Verify Ivanti Avalanche is installedCheck for Ivanti Avalanche installation directory or installed programs list. Common paths include C:\Program Files\Ivanti or C:\Program Files (x86)\Ivanti. On Windows, use Registry key HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\{GUID} or check Program Files folder.Affected if Ivanti Avalanche software is present on the system
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Determine installed Avalanche versionCheck version information in the installation directory, typically in an About or version file, or right-click on the main executable (Avalanche.exe or WLAvalancheService.exe) and view Properties > Details. Look for File Version or Product Version.Affected if Installed version is earlier than 6.4.3.528 (e.g., 6.4.2.x, 6.4.1.x, 6.3.x, etc.)
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Confirm WLAvalancheService component is runningOpen Windows Services (services.msc) or use command 'sc query WLAvalancheService' to check if the WLAvalancheService Windows service exists and is running. Alternatively, check Task Manager for WLAvalancheService.exe process.Affected if WLAvalancheService is installed and running as a Windows service or active process
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Assess network exposure of WLAvalancheServiceCheck firewall rules and listening ports. Use 'netstat -an | findstr LISTENING' to identify ports Avalanche listens on, typically ports in the 80/443 or 8080/8443 range. Review network configuration to determine if the service is accessible from untrusted networks.Affected if WLAvalancheService is listening on accessible network ports and reachable from untrusted/untrusted networks
A system is affected if Ivanti Avalanche version is below 6.4.3.528 AND the WLAvalancheService component is running and network-accessible.
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 · scoped6.4.3.528
Upgrade Ivanti Avalanche to version 6.4.3 or later to address the vulnerability. If immediate patching is not possible, restrict network access to the WLAvalancheService and monitor for unauthorized memory access attempts.
Ivanti Avalanche 6.4.3.528
- Upgrade Ivanti Avalanche to version 6.4.3.528 or later to resolve the out-of-bounds read vulnerability in the WLAvalancheService component.
- Verify the upgrade by checking the Ivanti Avalanche version after installation to ensure the patch has been successfully applied.
- Test the upgraded Avalanche instance to confirm normal functionality after the upgrade.
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation4.0 h
- Implementation8.0 h
- Testing6.0 h
- Review / QA2.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2024-23530 — 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-2024-23530 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