CVE-2024-27942
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 vulnerability has been identified in RUGGEDCOM CROSSBOW (All versions < V5.5). The affected systems allow any unauthenticated client to disconnect any active user from the server. An attacker could use this vulnerability to prevent any user to perform actions in the system, causing a denial of service situation.
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 confidenceRUGGEDCOM CROSSBOW versions prior to V5.5 contain a pre-authentication vulnerability allowing any unauthenticated remote attacker to forcibly disconnect any active user from the server. This is accomplished without any credentials, enabling trivial denial of service against all connected users.
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< 5.5CVSS 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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Identify installed RUGGEDCOM CROSSBOW versionAccess the Crossbow management interface and navigate to the System Information or About section to view the software version. Alternatively, check the release notes or firmware file metadata if upgrading from a downloaded package.Affected if The displayed version is numerically less than 5.5 (for example, 5.4.0, 5.3.1, etc.) or shows a build date prior to the V5.5 release.
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Verify management interface is network-accessibleConfirm that the Crossbow server management interface (typically web-based or network service port) is reachable from network segments that could contain untrusted users or external networks.Affected if The management interface is exposed to untrusted networks without firewall filtering, allowing unauthenticated network attackers to reach it.
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Check for active connected usersReview the Crossbow server status or user session management interface to see if any users are currently authenticated and connected to the server.Affected if There are active authenticated sessions; the vulnerability enables any unauthenticated attacker to disconnect these sessions, causing denial of service.
If the installed RUGGEDCOM CROSSBOW version is below V5.5 and the management interface is network-accessible, the environment is vulnerable to unauthenticated remote denial-of-service attacks that can forcibly disconnect all active users.
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 · scoped5.5
Upgrade RUGGEDCOM CROSSBOW to version V5.5 or later. If immediate patching is not feasible, implement network segmentation and firewall controls to restrict unauthorized access to the management interface.
V5.5
- Upgrade Ruggedcom Crossbow to version V5.5 or later to resolve the missing authentication vulnerability
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation2.0 h
- Implementation2.0 h
- Testing2.0 h
- Review / QA1.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $1,984.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2024-27942 — 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-2024-27942 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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