Description
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 cgi_tm_set_share of the file /cgi-bin/time_machine.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.
Published: 2026-03-16
Score: 5.3 Medium
EPSS: < 1% Very Low
KEV: No
Impact: Remote Command Execution
Action: Patch Immediately
AI Analysis

Impact

The flaw resides in the cgi_tm_set_share function within /cgi-bin/time_machine.cgi. By supplying a crafted Name parameter, attackers can inject shell commands that are executed with the privileges of the web service, enabling remote code execution on the device. This allows full control or destruction of network configuration and aligns with CWE‑77 (Command Injection) and CWE‑74 (Improper Neutralization of Path Elements).

Affected Systems

Affected devices include a range of D‑Link routers and DNS appliances: D-Link DNR‑202L, DNR‑326, DNS‑1100‑4, DNS‑120, DNS‑1200‑05, DNS‑1550‑04, DNS‑315L, DNS‑320, DNS‑320L, DNS‑320LW, DNS‑321, DNS‑322L, DNS‑323, DNS‑325, DNS‑326, DNS‑327L, DNS‑340L, DNS‑343, DNS‑345, DNS‑726‑4. The issue is present in firmware versions up to 20260205; newer versions beyond that date are considered fixed.

Risk and Exploitability

CVSS base score of 5.3 indicates moderate severity, while the EPSS score is below 1 % suggesting a low probability of exploitation. The vulnerability is not listed in the CISA KEV catalog. Attackers can exploit it remotely by sending a crafted HTTP request to the time_machine.cgi endpoint from any machine that can reach the device’s management interface, without requiring local privileges.

Generated by OpenCVE AI on March 19, 2026 at 15:34 UTC.

Remediation

No vendor fix or workaround currently provided.

OpenCVE Recommended Actions

  • Verify current firmware version of affected D‑Link devices; ensure it is newer than 20260205.
  • If the firmware is vulnerable, download and install the latest official firmware from D‑Link’s support site.
  • If an update is not available, disable or block access to /cgi-bin/time_machine.cgi on the device, or restrict management interface access through firewall rules.
  • Consider isolating the device in a segmented network and restricting management access to trusted management hosts.
  • Monitor system logs for suspicious commands or repeated failed injection attempts.

Generated by OpenCVE AI on March 19, 2026 at 15:34 UTC.

Tracking

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Advisories

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History

Thu, 19 Mar 2026 14:30:00 +0000

Type Values Removed Values Added
First Time appeared Dlink
Dlink dnr-202l
Dlink dnr-202l Firmware
Dlink dnr-326
Dlink dnr-326 Firmware
Dlink dns-1100-4
Dlink dns-1100-4 Firmware
Dlink dns-120
Dlink dns-1200-05
Dlink dns-1200-05 Firmware
Dlink dns-120 Firmware
Dlink dns-1550-04
Dlink dns-1550-04 Firmware
Dlink dns-315l
Dlink dns-315l Firmware
Dlink dns-320
Dlink dns-320 Firmware
Dlink dns-320l
Dlink dns-320l Firmware
Dlink dns-320lw
Dlink dns-320lw Firmware
Dlink dns-321
Dlink dns-321 Firmware
Dlink dns-322l
Dlink dns-322l Firmware
Dlink dns-323
Dlink dns-323 Firmware
Dlink dns-325
Dlink dns-325 Firmware
Dlink dns-326
Dlink dns-326 Firmware
Dlink dns-327l
Dlink dns-327l Firmware
Dlink dns-340l
Dlink dns-340l Firmware
Dlink dns-343
Dlink dns-343 Firmware
Dlink dns-345
Dlink dns-345 Firmware
Dlink dns-726-4
Dlink dns-726-4 Firmware
CPEs cpe:2.3:h:dlink:dnr-202l:-:*:*:*:*:*:*:*
cpe:2.3:h:dlink:dnr-326:-:*:*:*:*:*:*:*
cpe:2.3:h:dlink:dns-1100-4:-:*:*:*:*:*:*:*
cpe:2.3:h:dlink:dns-1200-05:-:*:*:*:*:*:*:*
cpe:2.3:h:dlink:dns-120:-:*:*:*:*:*:*:*
cpe:2.3:h:dlink:dns-1550-04:-:*:*:*:*:*:*:*
cpe:2.3:h:dlink:dns-315l:-:*:*:*:*:*:*:*
cpe:2.3:h:dlink:dns-320:-:*:*:*:*:*:*:*
cpe:2.3:h:dlink:dns-320l:-:*:*:*:*:*:*:*
cpe:2.3:h:dlink:dns-320lw:-:*:*:*:*:*:*:*
cpe:2.3:h:dlink:dns-321:-:*:*:*:*:*:*:*
cpe:2.3:h:dlink:dns-322l:-:*:*:*:*:*:*:*
cpe:2.3:h:dlink:dns-323:-:*:*:*:*:*:*:*
cpe:2.3:h:dlink:dns-325:-:*:*:*:*:*:*:*
cpe:2.3:h:dlink:dns-326:-:*:*:*:*:*:*:*
cpe:2.3:h:dlink:dns-327l:-:*:*:*:*:*:*:*
cpe:2.3:h:dlink:dns-340l:-:*:*:*:*:*:*:*
cpe:2.3:h:dlink:dns-343:-:*:*:*:*:*:*:*
cpe:2.3:h:dlink:dns-345:-:*:*:*:*:*:*:*
cpe:2.3:h:dlink:dns-726-4:-:*:*:*:*:*:*:*
cpe:2.3:o:dlink:dnr-202l_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:dlink:dnr-326_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:dlink:dns-1100-4_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:dlink:dns-1200-05_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:dlink:dns-120_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:dlink:dns-1550-04_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:dlink:dns-315l_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:dlink:dns-320_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:dlink:dns-320l_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:dlink:dns-320lw_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:dlink:dns-321_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:dlink:dns-322l_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:dlink:dns-323_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:dlink:dns-325_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:dlink:dns-326_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:dlink:dns-327l_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:dlink:dns-340l_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:dlink:dns-343_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:dlink:dns-345_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:dlink:dns-726-4_firmware:*:*:*:*:*:*:*:*
Vendors & Products Dlink
Dlink dnr-202l
Dlink dnr-202l Firmware
Dlink dnr-326
Dlink dnr-326 Firmware
Dlink dns-1100-4
Dlink dns-1100-4 Firmware
Dlink dns-120
Dlink dns-1200-05
Dlink dns-1200-05 Firmware
Dlink dns-120 Firmware
Dlink dns-1550-04
Dlink dns-1550-04 Firmware
Dlink dns-315l
Dlink dns-315l Firmware
Dlink dns-320
Dlink dns-320 Firmware
Dlink dns-320l
Dlink dns-320l Firmware
Dlink dns-320lw
Dlink dns-320lw Firmware
Dlink dns-321
Dlink dns-321 Firmware
Dlink dns-322l
Dlink dns-322l Firmware
Dlink dns-323
Dlink dns-323 Firmware
Dlink dns-325
Dlink dns-325 Firmware
Dlink dns-326
Dlink dns-326 Firmware
Dlink dns-327l
Dlink dns-327l Firmware
Dlink dns-340l
Dlink dns-340l Firmware
Dlink dns-343
Dlink dns-343 Firmware
Dlink dns-345
Dlink dns-345 Firmware
Dlink dns-726-4
Dlink dns-726-4 Firmware

Mon, 16 Mar 2026 16:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Mon, 16 Mar 2026 10:15:00 +0000

Type Values Removed Values Added
First Time appeared D-link
D-link dnr-202l
D-link dnr-322l
D-link dnr-326
D-link dns-1100-4
D-link dns-120
D-link dns-1200-05
D-link dns-1550-04
D-link dns-315l
D-link dns-320
D-link dns-320l
D-link dns-320lw
D-link dns-321
D-link dns-323
D-link dns-325
D-link dns-326
D-link dns-327l
D-link dns-340l
D-link dns-343
D-link dns-345
D-link dns-726-4
Vendors & Products D-link
D-link dnr-202l
D-link dnr-322l
D-link dnr-326
D-link dns-1100-4
D-link dns-120
D-link dns-1200-05
D-link dns-1550-04
D-link dns-315l
D-link dns-320
D-link dns-320l
D-link dns-320lw
D-link dns-321
D-link dns-323
D-link dns-325
D-link dns-326
D-link dns-327l
D-link dns-340l
D-link dns-343
D-link dns-345
D-link dns-726-4

Mon, 16 Mar 2026 03:45:00 +0000

Type Values Removed Values Added
Description 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 cgi_tm_set_share of the file /cgi-bin/time_machine.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.
Title D-Link DNS-1550-04 time_machine.cgi cgi_tm_set_share command injection
Weaknesses CWE-74
CWE-77
References
Metrics cvssV2_0

{'score': 6.5, 'vector': 'AV:N/AC:L/Au:S/C:P/I:P/A:P/E:POC/RL:ND/RC:UR'}

cvssV3_0

{'score': 6.3, 'vector': 'CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R'}

cvssV3_1

{'score': 6.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R'}

cvssV4_0

{'score': 5.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P'}

Subscriptions

D-link Dnr-202l Dnr-322l Dnr-326 Dns-1100-4 Dns-120 Dns-1200-05 Dns-1550-04 Dns-315l Dns-320 Dns-320l Dns-320lw Dns-321 Dns-323 Dns-325 Dns-326 Dns-327l Dns-340l Dns-343 Dns-345 Dns-726-4
Dlink Dnr-202l Dnr-202l Firmware Dnr-326 Dnr-326 Firmware Dns-1100-4 Dns-1100-4 Firmware Dns-120 Dns-1200-05 Dns-1200-05 Firmware Dns-120 Firmware Dns-1550-04 Dns-1550-04 Firmware Dns-315l Dns-315l Firmware Dns-320 Dns-320 Firmware Dns-320l Dns-320l Firmware Dns-320lw Dns-320lw Firmware Dns-321 Dns-321 Firmware Dns-322l Dns-322l Firmware Dns-323 Dns-323 Firmware Dns-325 Dns-325 Firmware Dns-326 Dns-326 Firmware Dns-327l Dns-327l Firmware Dns-340l Dns-340l Firmware Dns-343 Dns-343 Firmware Dns-345 Dns-345 Firmware Dns-726-4 Dns-726-4 Firmware
cve-icon MITRE

Status: PUBLISHED

Assigner: VulDB

Published:

Updated: 2026-03-16T15:31:27.493Z

Reserved: 2026-03-15T11:58:18.779Z

Link: CVE-2026-4210

cve-icon Vulnrichment

Updated: 2026-03-16T15:31:24.841Z

cve-icon NVD

Status : Analyzed

Published: 2026-03-16T14:20:07.113

Modified: 2026-03-19T14:28:39.767

Link: CVE-2026-4210

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-03-23T14:00:39Z

Weaknesses