CVE-2026-5312

Name: CVE-2026-5312
Creator: NVD / NIST
Published: 2026-04-01T21:17:03.613+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.5/10EPSS 0.54%

Last modified Jun 17, 2026

CVE-2026-5312 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. 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. EPSS estimates a 0.54% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 3.1

5.3/10

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

CVSS 4.0

5.5/10

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS Probability

0.54%

41.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
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
Dlink	Dns-325 Firmware	<= 2026-02-05
Dlink	Dns-326 Firmware	<= 2026-02-05
Dlink	Dns-327l Firmware	<= 2026-02-05
Dlink	Dns-340l Firmware	<= 2026-02-05
Dlink	Dns-343 Firmware	<= 2026-02-05
Dlink	Dns-345 Firmware	<= 2026-02-05
Dlink	Dns-726-4 Firmware	<= 2026-02-05
Dlink	Dnr-202l Firmware	<= 2026-02-05
Dlink	Dnr-326 Firmware	<= 2026-02-05
Dlink	Dns-1100-4 Firmware	<= 2026-02-05
Dlink	Dns-120 Firmware	<= 2026-02-05
Dlink	Dns-1200-05 Firmware	<= 2026-02-05

References

https://github.com/wudipjq/my_vuln/blob/main/D-Link8/vuln_172/172.mdExploit, Third Party Advisory
https://github.com/wudipjq/my_vuln/blob/main/D-Link8/vuln_173/173.mdExploit, Third Party Advisory
https://vuldb.com/submit/780442Third Party Advisory, VDB Entry
https://vuldb.com/submit/780443Third Party Advisory, VDB Entry
https://vuldb.com/vuln/354641Third Party Advisory, VDB Entry
https://vuldb.com/vuln/354641/ctiPermissions Required, VDB Entry
https://www.dlink.com/Product

Timeline

Published: Apr 1, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-5312?

How severe is CVE-2026-5312?

CVE-2026-5312 has a CVSS score of 5.5/10 (MEDIUM severity). The EPSS model estimates a 0.54% probability of exploitation in the next 30 days.

How do I fix CVE-2026-5312?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-5312?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST