Privilege escalation in D-Link Dnr-202l
CVE-2026-5312
A weakness has been identified 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 by this vulnerability is the function FMT_restart/Status_HDInfo/SMART_List/ScanDisk_info/ScanDisk/volume_status/Get_Volume_Mapping/FMT_check_disk_remount_state/FMT_rebuildinfo/FMT_result_list/FMT_result_list_phy/FMT_get_dminfo/FMT_manually_rebuild_info/Get_current_raidtype of the file /cgi-bin/dsk_mgr.cgi. Executing a manipulation can lead to improper access controls. It is possible to launch the attack remotely. The exploit has been made available to the public and could be used for attacks.
Published · last modified .
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:N/I:N/A:L.
EPSS exploit prediction
EPSS: 0.009 (58.7th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 59th percentile — 58.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.009 · change: +0.004
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
- vuldb.com/vuln/354641 (technical-description, VDB Entry, Third Party Advisory, vdb-entry)
- vuldb.com/vuln/354641/cti (signature, Permissions Required, permissions-required, VDB Entry)
- vuldb.com/submit/780442 (VDB Entry, Third Party Advisory, third-party-advisory)
- vuldb.com/submit/780443 (VDB Entry, Third Party Advisory, third-party-advisory)
- github.com/wudipjq/my_vuln/blob/main/D-Link8/vuln_172/172.md (related, Exploit, Third Party Advisory)
- github.com/wudipjq/my_vuln/blob/main/D-Link8/vuln_173/173.md (Exploit, Third Party Advisory, exploit)
- www.dlink.com/ (Product, product)
Frequently asked questions
- What is CVE-2026-5312?
- CVE-2026-5312 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-2026-5312?
- Medium severity. CVSS v3 base score is 5.3 out of 10.