CVE-2026-4210: D-Link DNS-1550-04 time_machine.cgi cgi_tm_set_share command injection

Published Mar 16, 2026
·
Updated

A security flaw has been discovered in D-Link DNS-120, DNR-202L, DNS-315L, DNS-320, DNS-320L, DNS-320LW, DNS-321, DNR-322L, DNS-323, DNS-325, DNS-326, DNS-327L, DNR-326, DNS-340L, DNS-343, DNS-345, DNS-726-4, DNS-1100-4, DNS-1200-05 and DNS-1550-04 up to 20260205. Affected by this vulnerability is the function cgitmsetshare of the file /cgi-bin/timemachine.cgi. The manipulation of the argument Name results in command injection. It is possible to launch the attack remotely. The exploit has been released to the public and may be used for attacks.

Affected Software

60 affected components
D-Link DNS-120<=20260205
D-Link DNR-202L<=20260205
D-Link DNS-315L<=20260205
D-Link DNS-320<=20260205
D-Link DNS-320L<=20260205
D-Link DNS-320LW<=20260205
D-Link DNS-321<=20260205
D-Link DNR-322L<=20260205
D-Link DNS-323<=20260205
D-Link DNS-325<=20260205
D-Link DNS-326<=20260205
D-Link DNS-327L<=20260205
D-Link DNR-326<=20260205
D-Link DNS-340L<=20260205
D-Link DNS-343<=20260205
D-Link DNS-345<=20260205
D-Link DNS-726-4<=20260205
D-Link DNS-1100-4<=20260205
D-Link DNS-1200-05<=20260205
D-Link DNS-1550-04<=20260205
All of the following
Dlink Dnr-202l Firmware<=2026-02-05
Dlink Dnr-202l
All of the following
Dlink Dnr-326 Firmware<=2026-02-05
Dlink Dnr-326
All of the following
Dlink Dns-1100-4 Firmware<=2026-02-05
Dlink Dns-1100-4
All of the following
Dlink Dns-120 Firmware<=2026-02-05
Dlink Dns-120
All of the following
Dlink Dns-1200-05 Firmware<=2026-02-05
Dlink Dns-1200-05
All of the following
Dlink Dns-1550-04 Firmware<=2026-02-05
Dlink Dns-1550-04
All of the following
Dlink Dns-315l Firmware<=2026-02-05
Dlink Dns-315l
All of the following
Dlink Dns-320 Firmware<=2026-02-05
Dlink Dns-320
All of the following
Dlink Dns-320l Firmware<=2026-02-05
Dlink Dns-320l
All of the following
Dlink Dns-320lw Firmware<=2026-02-05
Dlink Dns-320lw
All of the following
Dlink Dns-321 Firmware<=2026-02-05
Dlink Dns-321
All of the following
Dlink Dns-322l Firmware<=2026-02-05
Dlink Dns-322l
All of the following
Dlink Dns-323 Firmware<=2026-02-05
Dlink Dns-323
All of the following
Dlink Dns-325 Firmware<=2026-02-05
Dlink Dns-325
All of the following
Dlink Dns-326 Firmware<=2026-02-05
Dlink Dns-326
All of the following
Dlink Dns-327l Firmware<=2026-02-05
Dlink Dns-327l
All of the following
Dlink Dns-340l Firmware<=2026-02-05
Dlink Dns-340l
All of the following
Dlink Dns-343 Firmware<=2026-02-05
Dlink Dns-343
All of the following
Dlink Dns-345 Firmware<=2026-02-05
Dlink Dns-345
All of the following
Dlink Dns-726-4 Firmware<=2026-02-05
Dlink Dns-726-4

Event History

Mar 16, 2026
CVE Published
via MITRE·03:02 AM
Data Sourced
via MITRE·03:02 AM
DescriptionSeverityWeakness
Data Sourced
via NVD·02:20 PM
DescriptionSeverityWeaknessAffected Software
Oct 8, 58191
Event
via FIRST·09:16 PM
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Frequently Asked Questions

1

What is the severity of CVE-2026-4210?

CVE-2026-4210 is classified as a high severity vulnerability due to its potential to allow command injection.

2

How do I fix CVE-2026-4210?

To fix CVE-2026-4210, update affected D-Link devices to firmware version 20260205 or later.

3

Which devices are affected by CVE-2026-4210?

CVE-2026-4210 affects several D-Link devices including DNS-120, DNS-315L, DNS-320, and others up to version 20260205.

4

What is the impact of CVE-2026-4210?

The impact of CVE-2026-4210 allows attackers to execute arbitrary commands on the affected device, potentially compromising its security.

5

Have any exploits been reported for CVE-2026-4210?

As of now, specific public exploits for CVE-2026-4210 have not been disclosed.

Contact

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