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CVE-2026-5311

MEDIUM CVSS 4.0: 5.5 EPSS 0.26%
Updated Apr 07, 2026
D-Link
Parameter Value
CVSS 5.5 (MEDIUM)
Affected Versions before 2026-02-05
Type CWE-266 (Incorrect Privilege Assignment), CWE-284 (Improper Access Control)
Vendor D-Link
Public PoC No

A security flaw has been discovered 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 is the function Webdav_Access_List of the file /cgi-bin/file_center.cgi. Performing a manipulation of the argument cmd results in improper access controls.

It is possible to initiate the attack remotely. The exploit has been released to the public and may be used for attacks.

Attack Parameters

Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Attack Requirements
None
No additional conditions
Privileges Required
None
No privileges needed
User Interaction
None
No user interaction needed

Impact Assessment

Confidentiality
Low
Partial data leak
Integrity
None
No data modification
Availability
None
No disruption

CVSS Vector v4.0

Vulnerable Products 40

Configuration From (including) Up to (excluding)
Dlink Dnr-202l_Firmware
cpe:2.3:o:dlink:dnr-202l_firmware:*:*:*:*:*:*:*:*
<= 2026-02-05
Dlink Dnr-202l
cpe:2.3:h:dlink:dnr-202l:-:*:*:*:*:*:*:*
Dlink Dnr-326_Firmware
cpe:2.3:o:dlink:dnr-326_firmware:*:*:*:*:*:*:*:*
<= 2026-02-05
Dlink Dnr-326
cpe:2.3:h:dlink:dnr-326:-:*:*:*:*:*:*:*
Dlink Dns-1100-4_Firmware
cpe:2.3:o:dlink:dns-1100-4_firmware:*:*:*:*:*:*:*:*
<= 2026-02-05
Dlink Dns-1100-4
cpe:2.3:h:dlink:dns-1100-4:-:*:*:*:*:*:*:*
Dlink Dns-120_Firmware
cpe:2.3:o:dlink:dns-120_firmware:*:*:*:*:*:*:*:*
<= 2026-02-05
Dlink Dns-120
cpe:2.3:h:dlink:dns-120:-:*:*:*:*:*:*:*
Dlink Dns-1200-05_Firmware
cpe:2.3:o:dlink:dns-1200-05_firmware:*:*:*:*:*:*:*:*
<= 2026-02-05
Dlink Dns-1200-05
cpe:2.3:h:dlink:dns-1200-05:-:*:*:*:*:*:*:*
Dlink Dns-1550-04_Firmware
cpe:2.3:o:dlink:dns-1550-04_firmware:*:*:*:*:*:*:*:*
<= 2026-02-05
Dlink Dns-1550-04
cpe:2.3:h:dlink:dns-1550-04:-:*:*:*:*:*:*:*
Dlink Dns-315l_Firmware
cpe:2.3:o:dlink:dns-315l_firmware:*:*:*:*:*:*:*:*
<= 2026-02-05
Dlink Dns-315l
cpe:2.3:h:dlink:dns-315l:-:*:*:*:*:*:*:*
Dlink Dns-320_Firmware
cpe:2.3:o:dlink:dns-320_firmware:*:*:*:*:*:*:*:*
<= 2026-02-05
Dlink Dns-320
cpe:2.3:h:dlink:dns-320:-:*:*:*:*:*:*:*
Dlink Dns-320l_Firmware
cpe:2.3:o:dlink:dns-320l_firmware:*:*:*:*:*:*:*:*
<= 2026-02-05
Dlink Dns-320l
cpe:2.3:h:dlink:dns-320l:-:*:*:*:*:*:*:*
Dlink Dns-320lw_Firmware
cpe:2.3:o:dlink:dns-320lw_firmware:*:*:*:*:*:*:*:*
<= 2026-02-05
Dlink Dns-320lw
cpe:2.3:h:dlink:dns-320lw:-:*:*:*:*:*:*:*
Dlink Dns-321_Firmware
cpe:2.3:o:dlink:dns-321_firmware:*:*:*:*:*:*:*:*
<= 2026-02-05
Dlink Dns-321
cpe:2.3:h:dlink:dns-321:-:*:*:*:*:*:*:*
Dlink Dns-322l_Firmware
cpe:2.3:o:dlink:dns-322l_firmware:*:*:*:*:*:*:*:*
<= 2026-02-05
Dlink Dns-322l
cpe:2.3:h:dlink:dns-322l:-:*:*:*:*:*:*:*
Dlink Dns-323_Firmware
cpe:2.3:o:dlink:dns-323_firmware:*:*:*:*:*:*:*:*
<= 2026-02-05
Dlink Dns-323
cpe:2.3:h:dlink:dns-323:-:*:*:*:*:*:*:*
Dlink Dns-325_Firmware
cpe:2.3:o:dlink:dns-325_firmware:*:*:*:*:*:*:*:*
<= 2026-02-05
Dlink Dns-325
cpe:2.3:h:dlink:dns-325:-:*:*:*:*:*:*:*
Dlink Dns-326_Firmware
cpe:2.3:o:dlink:dns-326_firmware:*:*:*:*:*:*:*:*
<= 2026-02-05
Dlink Dns-326
cpe:2.3:h:dlink:dns-326:-:*:*:*:*:*:*:*
Dlink Dns-327l_Firmware
cpe:2.3:o:dlink:dns-327l_firmware:*:*:*:*:*:*:*:*
<= 2026-02-05
Dlink Dns-327l
cpe:2.3:h:dlink:dns-327l:-:*:*:*:*:*:*:*
Dlink Dns-340l_Firmware
cpe:2.3:o:dlink:dns-340l_firmware:*:*:*:*:*:*:*:*
<= 2026-02-05
Dlink Dns-340l
cpe:2.3:h:dlink:dns-340l:-:*:*:*:*:*:*:*
Dlink Dns-343_Firmware
cpe:2.3:o:dlink:dns-343_firmware:*:*:*:*:*:*:*:*
<= 2026-02-05
Dlink Dns-343
cpe:2.3:h:dlink:dns-343:-:*:*:*:*:*:*:*
Dlink Dns-345_Firmware
cpe:2.3:o:dlink:dns-345_firmware:*:*:*:*:*:*:*:*
<= 2026-02-05
Dlink Dns-345
cpe:2.3:h:dlink:dns-345:-:*:*:*:*:*:*:*
Dlink Dns-726-4_Firmware
cpe:2.3:o:dlink:dns-726-4_firmware:*:*:*:*:*:*:*:*
<= 2026-02-05
Dlink Dns-726-4
cpe:2.3:h:dlink:dns-726-4:-:*:*:*:*:*:*:*