CVE-2026-4196
D-Link DNS-1550-04 remote_backup.cgi cgi_set_rsync_server command injection
- State
- Published
- Severity
- 5.3 Medium
- Published
- Mar 15, 2026
- Updated
- Mar 16, 2026
- Reserved
- Mar 15, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 5.3 Medium | 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 | VulDB |
| 3.1 | 6.3 Medium | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R | VulDB |
| 3.0 | 6.3 Medium | CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R | VulDB |
| 2.0 | 6.5 Medium | AV:N/AC:L/Au:S/C:P/I:P/A:P/E:POC/RL:ND/RC:UR | VulDB |
Weaknesses
Affected Products
| Product | Versions |
|---|---|
DNS-120D-Link |
|
DNR-202LD-Link |
|
DNS-315LD-Link |
|
DNS-320D-Link |
|
DNS-320LD-Link |
|
DNS-320LWD-Link |
|
DNS-321D-Link |
|
DNR-322LD-Link |
|
DNS-323D-Link |
|
DNS-325D-Link |
|
DNS-326D-Link |
|
DNS-327LD-Link |
|
DNR-326D-Link |
|
DNS-340LD-Link |
|
DNS-343D-Link |
|
DNS-345D-Link |
|
DNS-726-4D-Link |
|
DNS-1100-4D-Link |
|
DNS-1200-05D-Link |
|
DNS-1550-04D-Link |
|
References
- VDB-351108 | D-Link DNS-1550-04 remote_backup.cgi cgi_set_rsync_server command injectionvdb-entrytechnical-description
- VDB-351108 | CTI Indicators (IOB, IOC, TTP, IOA)signaturepermissions-required
- 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 Injectionthird-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)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)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)third-party-advisory
- https://github.com/wudipjq/my_vuln/blob/main/D-Link8/vuln_98/98.mdrelated
- https://github.com/wudipjq/my_vuln/blob/main/D-Link8/vuln_99/99.mdexploit
- https://www.dlink.com/product
Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.