← Vulnerability feed

Vulnerability record · CVE-2026-5214 · published 31 March 2026

CVE-2026-5214: Dlink dnr-202l firmware memory buffer overflow vulnerability

Dlink · Dnr 202l Firmware

A 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, DNR-326, DNS-340L, DNS-343, DNS-345, DNS-726-4, DNS-1100-4, DNS-1200-05 and DNS-1550-04 up to 20260205. Impacted is the function cgi_addgroup_get_group_quota_minsize of the file /cgi-bin/account_mgr.cgi. The manipulation of the argument Name results in stack-based buffer overflow. The attack may be performed from remote. The exploit has been made public and could be used.

7.4 CVSS 4.0 High EPSS 1.2% · top 33.9% CWE-119 · Memory buffer overflowCWE-121 · Stack-based buffer overflow
7.4CVSS 4.0 base score, v2 9.0
1.2%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 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, DNR-326, DNS-340L, DNS-343, DNS-345, DNS-726-4, DNS-1100-4, DNS-1200-05 and DNS-1550-04 up to 20260205. Impacted is the function cgi_addgroup_get_group_quota_minsize of the file /cgi-bin/account_mgr.cgi. The manipulation of the argument Name results in stack-based buffer overflow. The attack may be performed from remote. The exploit has been made public and could be used.

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/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_169/169.md ExploitThird Party Advisory
https://vuldb.com/submit/780439 Third Party AdvisoryVDB Entry
https://vuldb.com/vuln/354349 Third Party AdvisoryVDB Entry
https://vuldb.com/vuln/354349/cti Permissions RequiredVDB Entry
https://www.dlink.com/ Product

Track CVE-2026-5214 inside VULONE

Watch it alongside the ransomware crews, C2 infrastructure and forum chatter that reference it, query it through the API and pull it into your SIEM over TAXII.

Start free Open in platform

Related vulnerabilities

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

9.8CVE-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%analysed9.8CVE-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%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-2026-5213Dlink dnr-202l firmware memory buffer overflow vulnerabilityA vulnerability was determined 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…EPSS 1.2%

Source: NIST National Vulnerability Database (record CVE-2026-5214), CISA KEV, FIRST EPSS (scores of 2026-09-28). This page is refreshed as NVD updates the record.