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CVE-2026-4212

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

Published: Mar 16, 2026Updated: Mar 19, 2026 Sources: CVE List NVDCWE-119
NVD MITRE
8.8CVSSHIGH
EPSS Score
0.8%
Top 48.5%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
No Fix Available

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.

CVSS Vector Breakdown

AV:NAC:LPR:LUI:NS:UC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
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Weaknesses

CWE-119CWE-121CWE-787

Affected Products

dnr-202l firmwaredlinkNetworking Infrastructure
dnr-326 firmwaredlinkNetworking Infrastructure
dns-1100-4 firmwaredlinkNetworking Infrastructure
dns-120 firmwaredlinkNetworking Infrastructure
dns-1200-05 firmwaredlinkNetworking Infrastructure
dlinkcommercialTWNetworking Infrastructure
and 35 more affected products View all →

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.

MITRE ATT&CK

2 techniques
Initial Access
Privilege Escalation
View detailed technique mapping

References

https://github.com/wudipjq/my_vuln/blob/main/D-Link8/vuln_161/161.md
github.com
https://vuldb.com/?ctiid.351123
vuldb.com
https://vuldb.com/?id.351123
vuldb.com
and 2 more references View all →

Timeline

Published
Mar 16, 2026
Last Updated
Mar 19, 2026

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