CVE-2026-4204

EUVD-2026-12277
A flaw 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. The affected element is the function cgi_myfavorite_add/cgi_myfavorite_set/cgi_myfavorite_del/cgi_myfavorite_set_sort_info/cgi_myfavorite_remove_apkg/cgi_myfavorite_compare_apkg/cgi_mycloud_auto_downlaod of the file /cgi-bin/gui_mgr.cgi. This manipulation of the argument f_user causes command injection. Remote exploitation of the attack is possible. The exploit has been published and may be used.
Injection
Command Injection
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
6.3 MEDIUM
NETWORK
LOW
LOW
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
Base Score
CVSS 3.x
EPSS Score
Percentile: 31%
Affected Products (NVD)
VendorProductVersion
dlinkdnr-202l_firmware
𝑥
≤ 2026-02-05
dlinkdnr-326_firmware
𝑥
≤ 2026-02-05
dlinkdns-1100-4_firmware
𝑥
≤ 2026-02-05
dlinkdns-120_firmware
𝑥
≤ 2026-02-05
dlinkdns-1200-05_firmware
𝑥
≤ 2026-02-05
dlinkdns-1550-04_firmware
𝑥
≤ 2026-02-05
dlinkdns-315l_firmware
𝑥
≤ 2026-02-05
dlinkdns-320_firmware
𝑥
≤ 2026-02-05
dlinkdns-320l_firmware
𝑥
≤ 2026-02-05
dlinkdns-320lw_firmware
𝑥
≤ 2026-02-05
dlinkdns-321_firmware
𝑥
≤ 2026-02-05
dlinkdns-322l_firmware
𝑥
≤ 2026-02-05
dlinkdns-323_firmware
𝑥
≤ 2026-02-05
dlinkdns-325_firmware
𝑥
≤ 2026-02-05
dlinkdns-326_firmware
𝑥
≤ 2026-02-05
dlinkdns-327l_firmware
𝑥
≤ 2026-02-05
dlinkdns-340l_firmware
𝑥
≤ 2026-02-05
dlinkdns-343_firmware
𝑥
≤ 2026-02-05
dlinkdns-345_firmware
𝑥
≤ 2026-02-05
dlinkdns-726-4_firmware
𝑥
≤ 2026-02-05
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
https://github.com/wudipjq/my_vuln/blob/main/D-Link8/vuln_130/130.md
https://vuldb.com/?ctiid.351116
https://vuldb.com/?id.351116
https://vuldb.com/?submit.770409
https://www.dlink.com/