Home/CVE/A weakness has been identified in D-Link DNS-120, DNR-202L, DNS-315L, DNS-320, DNS-320L, DNS-320LW, DNS-321, DNR-322L, D
CVE

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, D

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.

MEDIUM · CVSS 5.3 EPSS 0.00192
Schedule remediation
  • Public exploit or PoC is available
  • SSVC automatable: yes - attacks can be scripted at scale
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-266Incorrect Privilege Assignment
CWE-284Improper Access Control
▤

Affected Products & Versions

20
dlink dns-1550-04 firmware<= 2026-02-05
dlink dns-315l firmware<= 2026-02-05
dlink dns-320 firmware<= 2026-02-05
dlink dns-320l firmware<= 2026-02-05
dlink dns-320lw firmware<= 2026-02-05
dlink dns-321 firmware<= 2026-02-05
dlink dns-322l firmware<= 2026-02-05
dlink dns-323 firmware<= 2026-02-05
⚠

Public Exploits & PoCs

2
pocgithub.com · 172.mdgithub.com
pocgithub.com · 173.mdgithub.com
▣

Scoring & Timeline

5.3
MEDIUM · CVSS v3.1 · cna@vuldb.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD01 Apr 2026 · 09:17 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
SSVC triage · cisa-vulnrichment
Exploitation
poc
Automatable
yes
Technical impact
partial
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
🔗

References & Sources

5
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://vuldb.com/submit/780442Third Party AdvisoryVDB Entry
https://vuldb.com/submit/780443Third Party AdvisoryVDB Entry
https://vuldb.com/vuln/354641Third Party AdvisoryVDB Entry
https://vuldb.com/vuln/354641/ctiPermissions RequiredVDB Entry
https://www.dlink.com/Product
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