5.3 CVE-2026-5311

Enriched by CISA
 

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.
https://nvd.nist.gov/vuln/detail/CVE-2026-5311

Categories

CWE-266 : Incorrect Privilege Assignment
A product incorrectly assigns a privilege to a particular actor, creating an unintended sphere of control for that actor. Very carefully manage the setting, management, and handling of privileges. Explicitly manage trust zones in the software. Run your code using the lowest privileges that are required to accomplish the necessary tasks [REF-76]. If possible, create isolated accounts with limited privileges that are only used for a single task. That way, a successful attack will not immediately give the attacker access to the rest of the software or its environment. For example, database applications rarely need to run as the database administrator, especially in day-to-day operations. untrusted user placed in unix "wheel" group Product allows users to grant themselves certain rights that can be used to escalate privileges. Product uses group ID of a user instead of the group, causing it to run with different privileges. This is resultant from some other unknown issue. Product mistakenly assigns a particular status to an entity, leading to increased privileges.

References


 

AFFECTED (from MITRE)

Vendor Product Versions
D-Link DNS-120
  • 20260205 [affected]
D-Link DNR-202L
  • 20260205 [affected]
D-Link DNS-315L
  • 20260205 [affected]
D-Link DNS-320
  • 20260205 [affected]
D-Link DNS-320L
  • 20260205 [affected]
D-Link DNS-320LW
  • 20260205 [affected]
D-Link DNS-321
  • 20260205 [affected]
D-Link DNR-322L
  • 20260205 [affected]
D-Link DNS-323
  • 20260205 [affected]
D-Link DNS-325
  • 20260205 [affected]
D-Link DNS-326
  • 20260205 [affected]
D-Link DNS-327L
  • 20260205 [affected]
D-Link DNR-326
  • 20260205 [affected]
D-Link DNS-340L
  • 20260205 [affected]
D-Link DNS-343
  • 20260205 [affected]
D-Link DNS-345
  • 20260205 [affected]
D-Link DNS-726-4
  • 20260205 [affected]
D-Link DNS-1100-4
  • 20260205 [affected]
D-Link DNS-1200-05
  • 20260205 [affected]
D-Link DNS-1550-04
  • 20260205 [affected]
© 2022 The MITRE Corporation. This work is reproduced and distributed with the permission of The MITRE Corporation.

CPE

cpe start end

REMEDIATION


EXPLOITS

Exploit-db.com

id description date
No known exploits

POC Github

Url
No known exploits

Other Nist (github, ...)

Url
No known exploits

CAPEC

Common Attack Pattern Enumerations and Classifications

id description severity
No entry