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Home / Vulnerability Intelligence / CVE-2026-4212

CVE-2026-4212 - Vulnerability Analysis

HighCVSS: 8.8

Last Updated: March 16, 2026

Published: March 16, 2026Updated: March 16, 2026Remote Exploitable

Overview

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.

Severity & Score

Severity: High
CVSS Score: 8.8
EPSS Score: 4.5%(Probability of exploitation in next 30 days)

References

Social Media Activity(4 posts)

TheHackerWire
TheHackerWire
@thehackerwire
Mar 16, 2026

šŸŸ  CVE-2026-4212 - High (8.8) 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... šŸ”— https://www.thehackerwire.com/vulnerability/CVE-2026-4212/ #CVE #vulnerability #infosec #cybersecurity #security #Tenda #patchstack

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Offensive Sequence
Offensive Sequence
@offseq
Mar 16, 2026

šŸšØ CVE-2026-4212 (HIGH, CVSS 8.7): D-Link DNS-120 NAS stack buffer overflow in /cgi-bin/download_mgr.cgi enables remote, unauthenticated compromise. Patch or restrict access now. https://radar.offseq.com/threat/cve-2026-4212-stack-based-buffer-overflow-in-d-lin-423aef88 #OffSeq #Vulnerability #DLink #BlueTeam

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TheHackerWire
TheHackerWire
@thehackerwire
Mar 16, 2026

šŸŸ  CVE-2026-4212 - High (8.8) 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... šŸ”— https://www.thehackerwire.com/vulnerability/CVE-2026-4212/ #CVE #vulnerability #infosec #cybersecurity #security #Tenda #patchstack

View original post
Offensive Sequence
Offensive Sequence
@offseq
Mar 16, 2026

šŸšØ CVE-2026-4212 (HIGH, CVSS 8.7): D-Link DNS-120 NAS stack buffer overflow in /cgi-bin/download_mgr.cgi enables remote, unauthenticated compromise. Patch or restrict access now. https://radar.offseq.com/threat/cve-2026-4212-stack-based-buffer-overflow-in-d-lin-423aef88 #OffSeq #Vulnerability #DLink #BlueTeam

View original post

Related Resources

Details

CVE ID
CVE-2026-4212
Severity
High
CVSS Score
8.8
Status
unconfirmed
EPSS
4.5%
Social Posts
4

CWE

  • CWE-119

CVSS Metrics

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS Score

4.5%Probability of exploitation in the next 30 days