CVE-2026-4206
CRITICAL WAF: High
CVSS 9.8
Published: 2026-03-16
CWE-77 CWE-77
A vulnerability was 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 affects the function FMT_rebuild_diskmgr/FMT_create_diskmgr/ScanDisk_run_e2fsck of the file /cgi-bin/dsk_mgr.cgi. Performing a manipulation results in command injection. The attack is possible to be carried out remotely. The exploit has been made public and could be used.
WAF Coverage Analysis
Command Injection
High WAF Coverage
OWASP: A03:2021 Injection
932xxx - Remote Code Execution
Command Injection
High WAF Coverage
OWASP: A03:2021 Injection
932xxx - Remote Code Execution
Affected Software
| Vendor | Product | Version |
|---|---|---|
| dlink | dnr-202l_firmware | up to 2026-02-05 |
| dlink | dnr-326_firmware | up to 2026-02-05 |
| dlink | dns-1100-4_firmware | up to 2026-02-05 |
| dlink | dns-120_firmware | up to 2026-02-05 |
| dlink | dns-1200-05_firmware | up to 2026-02-05 |
| dlink | dns-1550-04_firmware | up to 2026-02-05 |
| dlink | dns-315l_firmware | up to 2026-02-05 |
| dlink | dns-320_firmware | up to 2026-02-05 |
| dlink | dns-320l_firmware | up to 2026-02-05 |
| dlink | dns-320lw_firmware | up to 2026-02-05 |
References
- github.com (Exploit, Third Party Advisory)
- github.com (Exploit, Third Party Advisory)
- vuldb.com (Permissions Required, VDB Entry)
- vuldb.com (Third Party Advisory, VDB Entry)
- vuldb.com (Third Party Advisory, VDB Entry)
- vuldb.com (Third Party Advisory, VDB Entry)
- vuldb.com (Third Party Advisory, VDB Entry)
- www.dlink.com (Product)