CVE-2024-45696: D-Link WiFi router - Hidden Functionality

Severity: high (CVSS 8.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.6% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2024-09-16 · updated 2026-06-17
Weakness: CWE-912

Description

Certain models of D-Link wireless routers contain hidden functionality. By sending specific packets to the web service, the attacker can forcibly enable the telnet service and log in using hard-coded credentials. The telnet service enabled through this method can only be accessed from within the same local network as the device.

Affected products

Dlink Covr-X1870 Firmware: before 1.03b01 — fixed in 1.03b01
D-Link DIR-X4860 A1: 1.00, 1.04

How to fix

Upgrade to a fixed version: Dlink Covr-X1870 Firmware 1.03b01. Check the vendor advisory for mitigations.

References

https://www.twcert.org.tw/en/cp-139-8087-c3e70-2.html
https://www.twcert.org.tw/tw/cp-132-8086-93ed5-1.html

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