CVE-2026-4194CWE-266CWE-284

D-Link DNS-1550-04 system_mgr.cgi cgi_set_wto access control

Medium · published March 15, 2026

CVSS v4.0
6.9
EPSS
3%
Percentile
87.8
In the wild
Unconfirmed
What it is

A vulnerability was detected 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. The impacted element is the function cgi_set_wto of the file /cgi-bin/system_mgr.cgi. Performing a manipulation results in improper access controls. Remote exploitation of the attack is possible. The exploit is now public and may be used.

The record
Technical detail
CVSS v4.0
6.9 · MEDIUM
Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
EPSS
0.03121 · 87.8th percentile
Weaknesses
CWE-266 · Incorrect Privilege Assignment; CWE-284 · Improper Access Control
Published
2026-03-15T23:02Z
EPSS history
Timeline
  • 15 MAR 23:02Z
    D-Link DNS-1550-04 system_mgr.cgi cgi_set_wto access control
    cvelistv5