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CVE-2026-4196

D-Link DNS-1550-04 remote_backup.cgi cgi_set_rsync_server command injection

CVSS 5.3 MEDIUMEPSS 3.7%CWE-74CWE-77
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.
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
Affected products
D-Link · DNR-202LD-Link · DNR-322LD-Link · DNR-326D-Link · DNS-1100-4D-Link · DNS-120D-Link · DNS-1200-05D-Link · DNS-1550-04D-Link · DNS-315LD-Link · DNS-320D-Link · DNS-320LD-Link · DNS-320LWD-Link · DNS-321D-Link · DNS-323D-Link · DNS-325D-Link · DNS-326D-Link · DNS-327LD-Link · DNS-340LD-Link · DNS-343D-Link · DNS-345D-Link · DNS-726-4

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References
https://github.com/wudipjq/my_vuln/blob/main/D-Link8/vuln_98/98.mdhttps://github.com/wudipjq/my_vuln/blob/main/D-Link8/vuln_99/99.mdhttps://vuldb.com/?ctiid.351108https://vuldb.com/?id.351108https://vuldb.com/?submit.769855https://vuldb.com/?submit.769856https://vuldb.com/?submit.769857https://vuldb.com/?submit.769858https://www.dlink.com/