CVE-2024-45698
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 · uneditedCertain models of D-Link wireless routers do not properly validate user input in the telnet service, allowing unauthenticated remote attackers to use hard-coded credentials to log into telnet and inject arbitrary OS commands, which can then be executed on the device.
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 confidenceCertain D-Link wireless router models contain a critical vulnerability in their telnet service where user input is not properly validated. Attackers can leverage hard-coded credentials to gain unauthenticated telnet access and inject arbitrary OS commands, leading to complete device compromise.
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= 1.00= 1.04CVSS 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 router modelCheck the device label on the router or log into the web admin interface (typically at 192.168.0.1) to confirm the exact model number displayed in the status or system settings pageAffected if The device is a D-Link DIR-X4860 router
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Check the installed firmware versionIn the router web admin interface, navigate to Status or System > Firmware section. Alternatively, check the firmware file name if you have access to the device backup or can query the device via SNMP or command lineAffected if The firmware version is 1.00 or 1.04
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Verify if telnet service is enabledFrom a computer on the same network, run 'telnet <router_ip>' on port 23 (default telnet port), or use nmap: 'nmap -p 23 192.168.0.1' to scan the router's LAN IP addressAffected if Port 23/telnet responds and accepts connections
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Check network exposure of telnet portRun an external port scan from outside the LAN: 'nmap -p 23 -Pn <wan_ip>' to determine if telnet is accessible from the internet, or check router firewall settings in the web admin interface under Security or Firewall settingsAffected if Telnet port 23 is open to the internet or to untrusted networks
You are affected if you have a D-Link DIR-X4860 router running firmware version 1.00 or 1.04 with telnet service enabled and accessible on your network.
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 available firmware updates from D-Link. If no update is available, disable the telnet service or restrict telnet access to trusted networks using firewall rules.
- Consultation2.0 h
- Implementation4.0 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 $2,560.
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Free · runs locallyCheck whether your project pulls in CVE-2024-45698 — 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-2024-45698 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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