Privilege escalation in D-Link Dnr-202l
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, 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.
EPSS: 0.010 (59.0th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.
Affected products
- D-link Dnr-202l — versions 20260205
- D-link Dnr-322l — versions 20260205
- D-link Dnr-326 — versions 20260205
- D-link Dns-1100-4 — versions 20260205
- D-link Dns-120 — versions 20260205
- D-link Dns-1200-05 — versions 20260205
- D-link Dns-1550-04 — versions 20260205
- D-link Dns-315l — versions 20260205
- D-link Dns-320 — versions 20260205
- D-link Dns-320l — versions 20260205
Weakness classification (CWE)
References
- cna@vuldb.com (technical-description, VDB Entry, Third Party Advisory, vdb-entry)
- cna@vuldb.com (signature, Permissions Required, permissions-required, VDB Entry)
- cna@vuldb.com (VDB Entry, Third Party Advisory, third-party-advisory)
- cna@vuldb.com (Exploit, Third Party Advisory, exploit)
- cna@vuldb.com (Product, product)
Frequently asked questions
- What is CVE-2026-5311?
- CVE-2026-5311 is a medium-severity vulnerability in D-Link Dnr-202l, classified under Incorrect Privilege Assignment. CVSS score: 5.3/10. Published 2026-04-01.
- How severe is CVE-2026-5311?
- Medium severity. CVSS v3 base score is 5.3 out of 10.