CVE-2024-41616Public exploitNetwork attack vector

Unauthorized device access via hard-coded Telnet credentials

Published Aug 6, 2024 · Updated Aug 6, 2024

Hard-coded credentials in D-Link DIR-300 firmware 1.06B05_WW allow remote attackers to gain Telnet access to the router. The initialization process starts the Telnet service with a fixed username and password embedded in firmware. Reachability requires network access to the Telnet service, and successful login grants access under the embedded account.

CVSS severity9.8
Critical
EPSS probability0.76%
Next 30 days · Sep 17, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Hard-coded credentials in D-Link DIR-300 firmware 1.06B05_WW allow remote attackers to gain Telnet access to the router. The initialization process starts the Telnet service with a fixed username and password embedded in firmware. Reachability requires network access to the Telnet service, and successful login grants access under the embedded account.

The record

CVE
CVE-2024-41616
Published
Aug 6, 2024
Updated
Aug 6, 2024
Vendor
D-Link
Product
DIR-300
Classifications
CWE-259, CWE-798, T1078.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 6, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 6, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=1.06b05_ww

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

D-Link · DIR-300version=1.06b05_ww

Published CVSS scores

8.8CISA-ADPCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-259Use of Hard-coded Password
CWE-798Use of Hard-coded Credentials
T1078.001Valid Accounts: Default Accounts

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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