CVE-2026-4196

MEDIUM

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

Title source: cna
STIX 2.1

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.

References (9)

Core 9
Core References
Vdb Entry, Technical Description vdb-entry technical-description
VDB-351108 | D-Link DNS-1550-04 remote_backup.cgi cgi_set_rsync_server command injection
https://vuldb.com/?id.351108
Signature, Permissions Required signature permissions-required
VDB-351108 | CTI Indicators (IOB, IOC, TTP, IOA)
https://vuldb.com/?ctiid.351108
Third Party Advisory third-party-advisory
Submit #769855 | 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、 up to 20260205 Command Injection
https://vuldb.com/?submit.769855
Third Party Advisory third-party-advisory
Submit #769856 | D-Link DNS-120/202L/315L/320/320L/320LW/321/322L/323/325/326/327L/340L/343/345/726-4/1100-4/1200-05/1550-04 up to 20260205 Command Injection (Duplicate)
https://vuldb.com/?submit.769856
Third Party Advisory third-party-advisory
Submit #769857 | D-Link DNS-120/202L/315L/320/320L/320LW/321/322L/323/325/326/327L/340L/343/345/726-4/1100-4/1200-05/1550-04 up to 20260205 Command Injection (Duplicate)
https://vuldb.com/?submit.769857
Third Party Advisory third-party-advisory
Submit #769858 | D-Link DNS-120/202L/315L/320/320L/320LW/321/322L/323/325/326/327L/340L/343/345/726-4/1100-4/1200-05/1550-04 up to 20260205 Command Injection (Duplicate)
https://vuldb.com/?submit.769858
Product product
https://www.dlink.com/

Scores

CVSS v3 6.3
EPSS 0.0374
EPSS Percentile 88.4%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

CISA SSVC

Vulnrichment
Exploitation poc
Automatable no
Technical Impact total

Details

CWE
CWE-74 CWE-77
Status published
Products (40)
D-Link/DNR-202L 20260205
D-Link/DNR-322L 20260205
D-Link/DNR-326 20260205
D-Link/DNS-1100-4 20260205
D-Link/DNS-120 20260205
D-Link/DNS-1200-05 20260205
D-Link/DNS-1550-04 20260205
D-Link/DNS-315L 20260205
D-Link/DNS-320 20260205
D-Link/DNS-320L 20260205
... and 30 more
Published Mar 16, 2026
Tracked Since Mar 16, 2026