CVE-2026-4212

HIGH

D-Link DNS-1550-04 download_mgr.cgi Downloads_Schedule_Info stack-based overflow

Title source: cna
STIX 2.1

Description

A security vulnerability has been 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. This affects the function Downloads_Schedule_Info of the file /cgi-bin/download_mgr.cgi. Such manipulation leads to stack-based buffer overflow. The attack can be launched remotely. The exploit has been disclosed publicly and may be used.

References (5)

Core 5
Core References
Vdb Entry, Technical Description vdb-entry technical-description
VDB-351123 | D-Link DNS-1550-04 download_mgr.cgi Downloads_Schedule_Info stack-based overflow
https://vuldb.com/?id.351123
Signature, Permissions Required signature permissions-required
VDB-351123 | CTI Indicators (IOB, IOC, IOA)
https://vuldb.com/?ctiid.351123
Third Party Advisory third-party-advisory
Submit #770442 | D-Link DNS-120/202L/315L/320/320L/320LW/321/322L/323/325/326/327L/326/340L/343/345/726-4/1100-4/1200-05/1550-04 up to 20260205 Stack-based Buffer Overflow
https://vuldb.com/?submit.770442
Product product
https://www.dlink.com/

Scores

CVSS v3 8.8
EPSS 0.0006
EPSS Percentile 18.6%
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-787 CWE-119 CWE-121
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 16, 2026
Tracked Since Mar 16, 2026