CVE-2026-5213

HIGH

D-Link DNS-1550-04 account_mgr.cgi cgi_adduser_to_session stack-based overflow

Title source: cna

Description

A vulnerability was determined 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_adduser_to_session of the file /cgi-bin/account_mgr.cgi. This manipulation of the argument read_list causes stack-based buffer overflow. It is possible to initiate the attack remotely. The exploit has been publicly disclosed and may be utilized.

References (5)

Scores

CVSS v3 8.8
EPSS 0.0004
EPSS Percentile 13.4%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation poc
Automatable no
Technical Impact total

Details

CWE
CWE-119 CWE-121 CWE-787
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 31, 2026
Tracked Since Apr 01, 2026