Vulnerability Monitor

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CVE-2026-5312


A weakness has been identified 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. Affected by this vulnerability is the function FMT_restart/Status_HDInfo/SMART_List/ScanDisk_info/ScanDisk/volume_status/Get_Volume_Mapping/FMT_check_disk_remount_state/FMT_rebuildinfo/FMT_result_list/FMT_result_list_phy/FMT_get_dminfo/FMT_manually_rebuild_info/Get_current_raidtype of the file /cgi-bin/dsk_mgr.cgi. Executing a manipulation can lead to improper access controls. It is possible to launch the attack remotely. The exploit has been made available to the public and could be used for attacks.


Security Impact Summary

This vulnerability carries a MEDIUM severity rating with a CVSS v3.1 score of 5.3, indicating it can be exploited remotely over the network with relatively low complexity without requiring user interaction and does not require pre-existing privileges . The vulnerability impacts and limited availability for affected systems. Impacting 40 products from dlink, from dlink, from dlink and 37 others, organizations running these solutions should prioritize assessment and patching.

Historical Context

Reported in 2026, this vulnerability emerged during an era marked by increased sophistication in supply chain attacks, cloud infrastructure vulnerabilities, and software-as-a-service (SaaS) security challenges. Security practices during this period emphasized zero-trust architectures, container security, and API protection.


Published

2026-04-01T21:17:03.613

Last Modified

2026-04-07T15:42:59.280

Status

Analyzed

Source

[email protected]

Severity

CVSSv3.1: 5.3 (MEDIUM)

CVSSv2 Vector

AV:N/AC:L/Au:N/C:N/I:N/A:P

  • Access Vector: NETWORK
  • Access Complexity: LOW
  • Authentication: NONE
  • Confidentiality Impact: NONE
  • Integrity Impact: NONE
  • Availability Impact: PARTIAL
Exploitability Score

10.0

Impact Score

2.9

Weaknesses
  • Type: Primary
    CWE-266
    CWE-284

Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Operating System dlink dns-1550-04_firmware ≤ 2026-02-05 Yes
Hardware dlink dns-1550-04 - No
Operating System dlink dns-315l_firmware ≤ 2026-02-05 Yes
Hardware dlink dns-315l - No
Operating System dlink dns-320_firmware ≤ 2026-02-05 Yes
Hardware dlink dns-320 - No
Operating System dlink dns-320l_firmware ≤ 2026-02-05 Yes
Hardware dlink dns-320l - No
Operating System dlink dns-320lw_firmware ≤ 2026-02-05 Yes
Hardware dlink dns-320lw - No
Operating System dlink dns-321_firmware ≤ 2026-02-05 Yes
Hardware dlink dns-321 - No
Operating System dlink dns-322l_firmware ≤ 2026-02-05 Yes
Hardware dlink dns-322l - No
Operating System dlink dns-323_firmware ≤ 2026-02-05 Yes
Hardware dlink dns-323 - No
Operating System dlink dns-325_firmware ≤ 2026-02-05 Yes
Hardware dlink dns-325 - No
Operating System dlink dns-326_firmware ≤ 2026-02-05 Yes
Hardware dlink dns-326 - No
Operating System dlink dns-327l_firmware ≤ 2026-02-05 Yes
Hardware dlink dns-327l - No
Operating System dlink dns-340l_firmware ≤ 2026-02-05 Yes
Hardware dlink dns-340l - No
Operating System dlink dns-343_firmware ≤ 2026-02-05 Yes
Hardware dlink dns-343 - No
Operating System dlink dns-345_firmware ≤ 2026-02-05 Yes
Hardware dlink dns-345 - No
Operating System dlink dns-726-4_firmware ≤ 2026-02-05 Yes
Hardware dlink dns-726-4 - No
Operating System dlink dnr-202l_firmware ≤ 2026-02-05 Yes
Hardware dlink dnr-202l - No
Operating System dlink dnr-326_firmware ≤ 2026-02-05 Yes
Hardware dlink dnr-326 - No
Operating System dlink dns-1100-4_firmware ≤ 2026-02-05 Yes
Hardware dlink dns-1100-4 - No
Operating System dlink dns-120_firmware ≤ 2026-02-05 Yes
Hardware dlink dns-120 - No
Operating System dlink dns-1200-05_firmware ≤ 2026-02-05 Yes
Hardware dlink dns-1200-05 - No

References

How SecUtils Interprets This CVE

SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For dlink's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.