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

Quick assessment

Affected
D-Link DNS-120
Exploitation
High exploitation probability; assess promptly
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

D-Link DNS-320等都是中国友讯（D-Link）公司的产品。D-Link DNS-320是一款NAS（网络附属存储）设备。D-Link DNS-120是一个网络存储适配器。D-Link DNS-315L是一个网络附加存储器。 D-Link多款产品存在命令注入漏洞，该漏洞源于对文件/cgi-bin/time_machine.cgi中函数cgi_tm_set_share的参数Name的操作，可能导致命令注入。以下产品及版本受到影响：DNS-120、DNR-202L、DNS-315L、DNS-320、

CVSS 6.3 · Medium EPSS 5.50% · P93
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I. Basic Information for CVE-2026-4210

Vulnerability Information
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Vulnerability Title
D-Link DNS-1550-04 time_machine.cgi cgi_tm_set_share command injection
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
在命令中使用的特殊元素转义处理不恰当(命令注入)
Source: CVE Program / CVE List V5
Vulnerability Title
D-Link多款产品 命令注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
D-Link DNS-320等都是中国友讯（D-Link）公司的产品。D-Link DNS-320是一款NAS（网络附属存储）设备。D-Link DNS-120是一个网络存储适配器。D-Link DNS-315L是一个网络附加存储器。 D-Link多款产品存在命令注入漏洞，该漏洞源于对文件/cgi-bin/time_machine.cgi中函数cgi_tm_set_share的参数Name的操作，可能导致命令注入。以下产品及版本受到影响：DNS-120、DNR-202L、DNS-315L、DNS-320、
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
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 -

II. Public POCs for CVE-2026-4210

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III. Intelligence Information for CVE-2026-4210

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News Coverage for CVE-2026-4210 (1)

Vendor Pages for CVE-2026-4210 (1)

Same Patch Batch · D-Link · 2026-03-16 · 11 CVEs total

CVE-2026-4214 8.8 HIGH D-Link DNS-1550-04 app_mgr.cgi UPnP_AV_Server_Path_Setting stack-based overflow
CVE-2026-4213 8.8 HIGH D-Link DNS-1550-04 gui_mgr.cgi cgi_myfavorite_verify stack-based overflow
CVE-2026-4212 8.8 HIGH D-Link DNS-1550-04 download_mgr.cgi Downloads_Schedule_Info stack-based overflow
CVE-2026-4211 8.8 HIGH D-Link DNS-1550-04 local_backup_mgr.cgi Local_Backup_Info stack-based overflow
CVE-2026-4209 6.3 MEDIUM D-Link DNS-1550-04 account_mgr.cgi cgi_chg_admin_pw command injection
CVE-2026-4207 6.3 MEDIUM D-Link DNS-1550-04 system_mgr.cgi cgi_ntp_time command injection
CVE-2026-4206 6.3 MEDIUM D-Link DNS-1550-04 dsk_mgr.cgi ScanDisk_run_e2fsck command injection
CVE-2026-4205 6.3 MEDIUM D-Link DNS-1550-04 app_mgr.cgi FTP_Server_BlockIP_Del command injection
CVE-2026-4204 6.3 MEDIUM D-Link DNS-1550-04 gui_mgr.cgi cgi_mycloud_auto_downlaod command injection
CVE-2026-4203 6.3 MEDIUM D-Link DNS-1550-04 network_mgr.cgi cgi_dhcpd command injection

IV. Related Vulnerabilities

Same product: DNS-120
Same vendor: D-Link
Same weakness: CWE-77

V. Comments for CVE-2026-4210

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