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CVE-2026-4207— D-Link DNS-1550-04 system_mgr.cgi cgi_ntp_time command injection

CVSS 6.3 · Medium EPSS 0.14% · P34
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I. Basic Information for CVE-2026-4207

Vulnerability Information
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Vulnerability Title
D-Link DNS-1550-04 system_mgr.cgi cgi_ntp_time command injection
Source: NVD (National Vulnerability Database)
Vulnerability Description
A vulnerability was determined 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. This impacts the function cgi_device/cgi_sms_test/cgi_firmware_upload/cgi_ntp_time of the file /cgi-bin/system_mgr.cgi. Executing a manipulation can lead to command injection. The attack may be performed from remote. The exploit has been publicly disclosed and may be utilized.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
Source: NVD (National Vulnerability Database)
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: NVD (National Vulnerability Database)
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/system_mgr.cgi中函数cgi_device/cgi_sms_test/cgi_firmware_upload/cgi_ntp_time的操作，可能导致命令注入。以下产品及版本受到影响：DNS
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

VendorProductAffected VersionsCPESubscribe
D-LinkDNS-120 20260205 -
D-LinkDNR-202L 20260205 -
D-LinkDNS-315L 20260205 -
D-LinkDNS-320 20260205 -
D-LinkDNS-320L 20260205 -
D-LinkDNS-320LW 20260205 -
D-LinkDNS-321 20260205 -
D-LinkDNR-322L 20260205 -
D-LinkDNS-323 20260205 -
D-LinkDNS-325 20260205 -
D-LinkDNS-326 20260205 -
D-LinkDNS-327L 20260205 -
D-LinkDNR-326 20260205 -
D-LinkDNS-340L 20260205 -
D-LinkDNS-343 20260205 -
D-LinkDNS-345 20260205 -
D-LinkDNS-726-4 20260205 -
D-LinkDNS-1100-4 20260205 -
D-LinkDNS-1200-05 20260205 -
D-LinkDNS-1550-04 20260205 -

II. Public POCs for CVE-2026-4207

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III. Intelligence Information for CVE-2026-4207

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

CVE-2026-42148.8 HIGHD-Link DNS-1550-04 app_mgr.cgi UPnP_AV_Server_Path_Setting stack-based overflow
CVE-2026-42138.8 HIGHD-Link DNS-1550-04 gui_mgr.cgi cgi_myfavorite_verify stack-based overflow
CVE-2026-42128.8 HIGHD-Link DNS-1550-04 download_mgr.cgi Downloads_Schedule_Info stack-based overflow
CVE-2026-42118.8 HIGHD-Link DNS-1550-04 local_backup_mgr.cgi Local_Backup_Info stack-based overflow
CVE-2026-42106.3 MEDIUMD-Link DNS-1550-04 time_machine.cgi cgi_tm_set_share command injection
CVE-2026-42096.3 MEDIUMD-Link DNS-1550-04 account_mgr.cgi cgi_chg_admin_pw command injection
CVE-2026-42066.3 MEDIUMD-Link DNS-1550-04 dsk_mgr.cgi ScanDisk_run_e2fsck command injection
CVE-2026-42056.3 MEDIUMD-Link DNS-1550-04 app_mgr.cgi FTP_Server_BlockIP_Del command injection
CVE-2026-42046.3 MEDIUMD-Link DNS-1550-04 gui_mgr.cgi cgi_mycloud_auto_downlaod command injection
CVE-2026-42036.3 MEDIUMD-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-2026-4207

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