CVE-2025-44179
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 · uneditedHitron CGNF-TWN 3.1.1.43-TWN-pre3 contains a command injection vulnerability in the telnet service. The issue arises due to improper input validation within the telnet command handling mechanism. An attacker can exploit this vulnerability by injecting arbitrary commands through the telnet interface when prompted for inputs or commands. Successful exploitation could lead to remote code execution (RCE) under the privileges of the telnet user, potentially allowing unauthorized access to system settings and sensitive information.
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 confidenceThe Hitron CGNF-TWN router firmware version 3.1.1.43-TWN-pre3 contains a command injection vulnerability in its telnet service due to improper input validation. An attacker can inject arbitrary OS commands through the telnet interface, achieving remote code execution with the privileges of the telnet user.
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
- Low
- Integrity
- Low
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/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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Identify the router modelCheck the device label or web interface for the exact model number (look for Hitron CGNF-TWN)Affected if The device is not a Hitron CGNF-TWN router, then this CVE does not apply
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Check the firmware versionAccess the router web interface (typically 192.168.0.1 or 192.168.1.1) and navigate to the firmware or status page to view the installed version, or check via telnet if already accessibleAffected if The firmware version is 3.1.1.43-TWN-pre3 (exact match) or falls within the affected version range if additional affected versions are published by the vendor
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Verify if the telnet service is enabledLog into the router web interface and check the services or administration settings for telnet status, or attempt a telnet connection to the router on port 23 from an internal networkAffected if Telnet service is enabled and running on the device
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Check telnet service network exposureDetermine if telnet port 23 is accessible from outside the local network by scanning external-facing ports or reviewing firewall rulesAffected if Telnet is exposed to untrusted networks (such as the internet or guest networks) rather than being restricted to the local administrative network only
A user is affected if they have a Hitron CGNF-TWN router running firmware version 3.1.1.43-TWN-pre3 with the telnet service enabled and 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.
From vendor dataApply vendor firmware patch when available; if unavailable or delayed, disable the telnet service and implement network access controls to restrict telnet exposure.
- Consultation4.0 h
- Implementation8.0 h
- Testing6.0 h
- Review / QA4.0 h
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 locallyCheck whether your project pulls in CVE-2025-44179 — 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-2025-44179 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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