Dir 820l FirmwareOperating system · Dlink

CVE-2024-48150

CRITICAL · 9.8 CVSS v3.1 Published 2024-10-14
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
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
D-Link DIR-820L 1.05B03 has a stack overflow vulnerability in the sub_451208 function.

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

Stack overflow vulnerability in the sub_451208 function of D-Link DIR-820L firmware 1.05B03. The vulnerability has a CVSS 9.8 critical rating, indicating likely unauthenticated remote exploitation with complete system compromise potential.

MitigationIf available, apply vendor firmware update. Otherwise, restrict network exposure, disable remote management interfaces, and monitor for indicators of 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
Dir 820l FirmwareOperating system
Affected:= 1.05b03

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 device model is D-Link DIR-820L
    Inspect the device label on the physical hardware, or check the model number displayed in the device web management interface under Status or System Information.
    Affected if The device is not a D-Link DIR-820L unit.
  2. Check firmware version installed
    Access the router web interface, navigate to Status or System Settings, and locate the firmware version field. Alternatively, check the firmware file name if you have access to the device filesystem or backup.
    Affected if The installed firmware version cannot be determined or differs from the labeled version.
  3. Compare installed version to affected range
    Compare the firmware version you found in step 2 against the affected version: 1.05B03. The vulnerability affects only this exact version.
    Affected if The installed firmware version is exactly 1.05B03.
  4. Assess remote management exposure
    In the router web interface, check the Remote Management or Web Management settings (typically under Setup or Advanced). Determine if remote administration is enabled and accessible from the WAN interface.
    Affected if Remote management is enabled and the device is accessible from the internet or untrusted networks.

You are affected if you have a D-Link DIR-820L router running firmware version 1.05B03 with remote management exposed to untrusted networks.

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.

From vendor data
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

If available, apply vendor firmware update. Otherwise, restrict network exposure, disable remote management interfaces, and monitor for indicators of compromise.

Fix this in Dir 820l Firmware 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 help mitigating

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-2024-48150 — 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 sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2024-48150 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