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I. Basic Information for CVE-2026-4196
Vulnerability Information
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Vulnerability Title
D-Link DNS-1550-04 remote_backup.cgi cgi_set_rsync_server command injection
Source: NVD (National Vulnerability Database)
Vulnerability Description
A vulnerability has been found 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_recovery/cgi_backup_now/cgi_set_schedule/cgi_set_rsync_server of the file /cgi-bin/remote_backup.cgi. The manipulation leads to command injection. The attack is possible to be carried out remotely. The exploit has been disclosed to the public and may be used.
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/remote_backup.cgi中函数cgi_recovery/cgi_backup_now/cgi_set_schedule/cgi_set_rsync_server的错误操作，可能导致命令注入。以
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-2026-4196
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III. Intelligence Information for CVE-2026-4196
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IV. Related Vulnerabilities
Same product: DNS-120
Same vendor: D-Link
Same weakness: CWE-77
V. Comments for CVE-2026-4196

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