Vulnerability Description
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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Dlink | Dnr-202L Firmware | <= 2026-02-05 |
| Dlink | Dnr-202L | - |
| Dlink | Dnr-326 Firmware | <= 2026-02-05 |
| Dlink | Dnr-326 | - |
| Dlink | Dns-1100-4 Firmware | <= 2026-02-05 |
| Dlink | Dns-1100-4 | - |
| Dlink | Dns-120 Firmware | <= 2026-02-05 |
| Dlink | Dns-120 | - |
| Dlink | Dns-1200-05 Firmware | <= 2026-02-05 |
| Dlink | Dns-1200-05 | - |
| Dlink | Dns-1550-04 Firmware | <= 2026-02-05 |
| Dlink | Dns-1550-04 | - |
| Dlink | Dns-315L Firmware | <= 2026-02-05 |
| Dlink | Dns-315L | - |
| Dlink | Dns-320 Firmware | <= 2026-02-05 |
| Dlink | Dns-320 | - |
| Dlink | Dns-320L Firmware | <= 2026-02-05 |
| Dlink | Dns-320L | - |
| Dlink | Dns-320Lw Firmware | <= 2026-02-05 |
| Dlink | Dns-320Lw | - |
Related Weaknesses (CWE)
References
- https://github.com/wudipjq/my_vuln/blob/main/D-Link8/vuln_171/171.mdExploitThird Party Advisory
- https://vuldb.com/submit/780441Third Party AdvisoryVDB Entry
- https://vuldb.com/vuln/354640Third Party AdvisoryVDB Entry
- https://vuldb.com/vuln/354640/ctiPermissions RequiredVDB Entry
- https://www.dlink.com/Product
FAQ
What is CVE-2026-5311?
CVE-2026-5311 is a vulnerability with a CVSS score of 5.3 (MEDIUM). 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, DN...
How severe is CVE-2026-5311?
CVE-2026-5311 has been rated MEDIUM with a CVSS base score of 5.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-5311?
Check the references section above for vendor advisories and patch information. Affected products include: Dlink Dnr-202L Firmware, Dlink Dnr-202L, Dlink Dnr-326 Firmware, Dlink Dnr-326, Dlink Dns-1100-4 Firmware.