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Vulnerability record · CVE-2026-5215 · published 31 March 2026

CVE-2026-5215: Dlink dnr-202l firmware improper access control vulnerability

Dlink · Dnr 202l Firmware

A vulnerability was 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. The impacted element is the function cgi_get_ipv6 of the file /cgi-bin/network_mgr.cgi. Such manipulation leads to improper access controls. The exploit is publicly available and might be used.

2.1 CVSS 4.0 Low EPSS 1.4% · top 28.2% CWE-266 · CWE-266CWE-284 · Improper access control
2.1CVSS 4.0 base score, v2 3.3
1.4%EPSS exploitation probability, 30 days
NoNot in CISA KEV
20Affected product versions listed by NVD
5References, 1 tagged exploit
17 Jun 2026Last modified by NVD

Description

A vulnerability was 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. The impacted element is the function cgi_get_ipv6 of the file /cgi-bin/network_mgr.cgi. Such manipulation leads to improper access controls. The exploit is publicly available and might be used.

CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

Affected products

20 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/wudipjq/my_vuln/blob/main/D-Link8/vuln_170/170.md ExploitThird Party Advisory
https://vuldb.com/submit/780440 Third Party AdvisoryVDB Entry
https://vuldb.com/vuln/354351 Third Party AdvisoryVDB Entry
https://vuldb.com/vuln/354351/cti Permissions RequiredVDB Entry
https://www.dlink.com/ Product

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2024-3273D-Link legacy NAS command injection in nas_sharing.cgiAn unauthenticated command injection flaw exists in the HTTP GET request handler of /cgi-bin/nas_sharing.cgi on multiple end-of-life D-Link NAS model…KEVEPSS 100%analysed9.8CVE-2024-3272D-Link NAS Devices Hard-Coded Credentials in nas_sharing.cgiD-Link DNS and DNR series NAS devices contain hard-coded credentials reachable through the HTTP GET handler in /cgi-bin/nas_sharing.cgi, where the 'u…KEVEPSS 98%analysed8.7CVE-2024-7832Dlink dns-120 firmware classic buffer overflow vulnerability** UNSUPPORTED WHEN ASSIGNED ** A vulnerability was found in D-Link DNS-120, DNR-202L, DNS-315L, DNS-320, DNS-320L, DNS-320LW, DNS-321, DNR-322L, DNS…EPSS 2.1%8.7CVE-2024-7831Dlink dns-120 firmware classic buffer overflow vulnerability** UNSUPPORTED WHEN ASSIGNED ** A vulnerability has been found in D-Link DNS-120, DNR-202L, DNS-315L, DNS-320, DNS-320L, DNS-320LW, DNS-321, DNR-322L…EPSS 1.8%8.7CVE-2024-7829Dlink dns-120 firmware classic buffer overflow vulnerability** UNSUPPORTED WHEN ASSIGNED ** A vulnerability, which was classified as critical, has been found in D-Link DNS-120, DNR-202L, DNS-315L, DNS-320, DNS…EPSS 1.8%8.7CVE-2024-7830Dlink dns-120 firmware classic buffer overflow vulnerability** UNSUPPORTED WHEN ASSIGNED ** A vulnerability, which was classified as critical, was found in D-Link DNS-120, DNR-202L, DNS-315L, DNS-320, DNS-320L…EPSS 1.8%8.7CVE-2024-7828Dlink dns-120 firmware classic buffer overflow vulnerability** UNSUPPORTED WHEN ASSIGNED ** A vulnerability classified as critical was found in D-Link DNS-120, DNR-202L, DNS-315L, DNS-320, DNS-320L, DNS-320LW,…EPSS 16%7.4CVE-2026-5214Dlink dnr-202l firmware memory buffer overflow vulnerabilityA vulnerability was found 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…EPSS 1.2%

Source: NIST National Vulnerability Database (record CVE-2026-5215), CISA KEV, FIRST EPSS (scores of 2026-10-05). This page is refreshed as NVD updates the record.