D-Link WiFi router - OS Command Injection

published 2024-09-16 2 y ago modified 2026-06-17 4 mo ago also EUVD-2024-41559

cvss: 9.8; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 1.1%; EPSS 1.1% chance of exploitation in 30 days, percentile 66%
public exploits: 0; none known

Certain models of D-Link wireless routers do not properly validate user input in the telnet service, allowing unauthenticated remote attackers to use hard-coded credentials to log into telnet and inject arbitrary OS commands, which can then be executed on the device.

CISA SSVC

Exploitation: none
Automatable: yes
Technical impact: total
Assessed: 13 mo ago (2025-09-15)

Exploit prediction

1.14% chance of exploitation in the next 30 days, higher than 66% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	9.8	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

D-Link DIR-X4860 A1
dlink dir-4860_a1

Classification

Weakness

CWE-78 Improper Neutralization of Special Elements used in an OS Command
CWE-798 Use of Hard-coded Credentials

References

twcert.org.tw /tw/cp-132-8090-bf06b-1.html
third-party-advisory
twcert.org.tw /en/cp-139-8091-bcd52-2.html
third-party-advisory

Sources

CVE List CVE-2024-45698
NVD CVE-2024-45698

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary