CVE-2024-23625

D-Link DAP-1650 SUBSCRIBE Callback Command Injection Vulnerability

No known exploitation. EPSS puts it in the 94th percentile. A vendor fix is available.

CVSS 3.19.6Critical EPSS percentile94th7.3% chance in 30 days CISA KEVNot listedNo confirmed exploitation
No public exploit known FixVendor fixNo build named by the sources

Published 2024-01-25Updated 2024-11-21Sources: CVE.org, NVD, BDU

NVD CVE.org

What to do

The vendor has published a fix. Version details are below where the sources state them.

D-Link DAP-1650Affected: ≤ 1.04B01Upgrade to: after 1.04B01Stated by: CVE record

Versions as the sources state them. Full version matrix after sign-in

Steps

Written by AI from the record

Check whether you own or use a D-Link DAP-1650 range extender/access point anywhere on your network.
If found, disconnect it from the internet-facing side or place it behind a firewall so it cannot receive traffic from untrusted networks.
Disable UPnP on the device if that option exists in its settings.
Check for a firmware update on D-Link's support site; no fixed version has been published yet, so continue monitoring for one.
If the device cannot be isolated or updated, plan to retire and replace it with a supported model.

Some work to apply

Check it yourselfA free OpenVAS check exists for this CVE. Run it against your hosts.Is your organisation exposed?Request an assessment to establish which checks fit your systems.

What it is

From the CVE record

A command injection vulnerability exists in D-Link DAP-1650 devices when handling UPnP SUBSCRIBE messages. An unauthenticated attacker can exploit this vulnerability to gain command execution on the device as root.

In plain language

Written by AI from the record

A serious flaw in the D-Link DAP-1650 Wi-Fi device lets an attacker on your network take full control of it without a password, and no official fix exists yet, so you should isolate or replace the device rather than wait for a patch.

Unauthenticated OS command injection (CWE-77) in the D-Link DAP-1650's UPnP SUBSCRIBE callback handler allows root-level arbitrary command execution from the adjacent network, with no vendor patch currently available.

If you're affected

Full device takeover
Network pivot point for attackers
Operational disruption
Router used as foothold for further attacks

What is it

This D-Link device is a small Wi-Fi extender used to boost network coverage, similar to a doorman who's supposed to only let in people with the right credentials. This flaw means someone on the same network can slip a secret command past that doorman and take over the whole device as if they were its owner.

Who is affected

This matters to you if you have a D-Link DAP-1650 Wi-Fi range extender or access point anywhere in your business network. Because no login is needed, anyone who can reach the device over the local or nearby wireless network can exploit it — the main limiting factor is whether an attacker can get onto that network segment at all.

How urgent is it

There is no confirmed active exploitation of this flaw yet and it is not on any government list of actively-attacked vulnerabilities, but the device can be fully taken over without a password and press attention to it is increasing. Treat this as a priority to isolate and monitor rather than a five-alarm emergency, since there's no evidence yet it's being used in real attacks.

What to do — in detail

Inventory your network for D-Link DAP-1650 devices (check model/label on the device or admin UI).
Confirm reachability: the attack requires only adjacent-network access and no authentication, so determine if the device's management or UPnP interface is reachable from untrusted networks (guest Wi-Fi, internet-facing WAN, etc.).
No vendor-supplied fixed firmware version has been published per current findings; check D-Link's advisory page periodically for updates.
Apply the vendor's documented compensating controls: restrict access to the device from public networks (the internet), and deploy firewall rules limiting which hosts can reach it.
Disable UPnP on the device entirely as a workaround, since the flaw is triggered via UPnP SUBSCRIBE messages.
If the device is end-of-life or a patch is not forthcoming, plan migration to a supported access point/router model.
Monitor D-Link's security advisories and this CVE for a published fix, and watch EPSS/exploit-tracking feeds for any change indicating active exploitation.

Technical context

CVSS 9.6 (Critical), AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H — command injection (CWE-77) via unsanitized UPnP SUBSCRIBE callback input, exploitable from the adjacent network with no authentication or user interaction, resulting in root-level command execution. Not listed in CISA KEV and no public exploit code is known to exist; EPSS places exploitation likelihood at 7.3% (94th percentile, flat trend), indicating elevated but unconfirmed risk relative to other CVEs. Press attention is rising, which may precede future proof-of-concept release or exploitation. No fixed firmware version is currently documented; only network-level compensating controls are available.

This is a general assessment based on public vulnerability data. It does not account for your specific infrastructure — when in doubt, consult a security specialist.

Exploitation

Where each signal puts this CVE on the scale from published to confirmed exploited.

EPSS94th

CISA KEV

Not in the catalog. CISA has not confirmed exploitation.

Public exploits

No public exploit or proof of concept found in the sources we track.

EPSS

7.3% chance of exploitation activity in the next 30 days, which ranks it in the 94th percentile of scored CVEs.

Exploit Prediction Scoring System, FIRST.org. A probability, not a confirmation.

Lifecycle

8 events over 987 days, from the signal feeds we watch.

2026-10-08EPSS band changemoderate → 0epss band change
2026-06-25OpenVAS check added
2024-11-21Patch availablerecord updated
2024-01-25Publishedweakness classified, att&ck mapped

Affected products

D-Link Corp.commercial · TWaka dlink, d-link corporation, d-link international
- DAP-1650Networking Infrastructure
- dap-1650 firmwareNetworking Infrastructure
D-Linkcommercial · TW
- DAP-1650Networking Infrastructure

Technical detail

CVSS 3.1 vector

Open in the CVSS calculator

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Scored 9.6 by NVD.

How it is reached

Attack Vector AdjacentRequires access to the local network (e.g. same Wi-Fi, Bluetooth)
Attack Complexity LowNo special conditions — the attack can be reliably reproduced
Privileges Required NoneNo authentication required — anyone can exploit this
User Interaction NoneNo user interaction needed — fully automated exploitation

Scope

Scope ChangedThe exploit can affect other components (e.g. sandbox escape, host compromise from VM)

Impact if exploited

Confidentiality HighTotal information disclosure — all data in the component is compromised
Integrity HighTotal loss of integrity — attacker can modify any data in the component
Availability HighTotal denial of service — the component is completely unavailable