CVE-2026-5311: A security flaw has been discovered in D-Link DNS-120, DNR-202L, DNS-315L, DNS-320, DNS-320L, DNS-320LW, DNS-321…
CVE-2026-5311 · Severity: medium · CVSS 5.3 · Published 2026-04-01
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.
No. Junglewise Threat Intelligence has no report of CVE-2026-5311 being exploited in the wild.
How severe is CVE-2026-5311?
Medium severity, with a CVSS score of 5.3, published 1 April 2026.
Which products and versions are affected?
Dlink Dnr-202l, Dlink Dnr-202l Firmware, Dlink Dnr-326, Dlink Dnr-326 Firmware and 36 more. The advisory does not name versions.
Is there a fix for CVE-2026-5311?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
Am I affected by CVE-2026-5311?
Check whether you run Dlink Dnr-202l, Dlink Dnr-202l Firmware, Dlink Dnr-326 or one of the others listed. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.