CVE-2024-45696

Telnet access via hidden packet-triggered service

Published Sep 16, 2024 · Updated Sep 16, 2024

Hidden functionality in D-Link DIR-X4860 and COVR-X1870 firmware allows attackers to obtain Telnet shell access. Specific packets sent to the web service forcibly enable Telnet, after which embedded hard-coded credentials permit login. Attackers must share the device's local network, and successful access grants an authenticated Telnet session on the router.

CVSS severity8.8
High
EPSS probability0.60%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Hidden functionality in D-Link DIR-X4860 and COVR-X1870 firmware allows attackers to obtain Telnet shell access. Specific packets sent to the web service forcibly enable Telnet, after which embedded hard-coded credentials permit login. Attackers must share the device's local network, and successful access grants an authenticated Telnet session on the router.

The record

CVE
CVE-2024-45696
Published
Sep 16, 2024
Updated
Sep 16, 2024
Vendor
D-Link
Product
COVR-X1870 Firmware
Classifications
CWE-912, CAPEC-36, T1078.001
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 16, 2024CVE publishedPublication date reported by the CVE source.
  2. Sep 16, 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=0 <=1.02

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesunauthenticated

What is affected?

D-Link · COVR-X1870 Firmwareversion=0 <=1.02
D-Link · DIR-X4860version=1.00; version=1.04
D-Link · COVR-X1870version=0 <=1.02
D-Link · DIR-X4860 Firmwareversion=1.00; version=1.04

Published CVSS scores

8.8TWCERT/CCCVSS:3.1/AV:A/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)
Vectoradjacent
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-912Hidden Functionality
CAPEC-36Using Unpublished Interfaces or Functionality
T1078.001Valid Accounts: Default Accounts

Public exploit references

No public exploit references are available in this record.

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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