High severity8.8NVD Advisory· Published Mar 31, 2026· Updated Apr 2, 2026
CVE-2026-5211
CVE-2026-5211
Description
A flaw has been 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. This vulnerability affects the function UPnP_AV_Server_Path_Del of the file /cgi-bin/app_mgr.cgi. Executing a manipulation of the argument f_dir can lead to stack-based buffer overflow. The attack can be executed remotely. The exploit has been published and may be used.
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Affected products
21cpe:2.3:o:dlink:dns-1200-05_firmware:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:dlink:dns-1200-05_firmware:*:*:*:*:*:*:*:*range: <=2026-02-05
- cpe:2.3:o:dlink:dns-120_firmware:*:*:*:*:*:*:*:*range: <=2026-02-05
cpe:2.3:o:dlink:dns-315l_firmware:*:*:*:*:*:*:*:*+ 2 more
- cpe:2.3:o:dlink:dns-315l_firmware:*:*:*:*:*:*:*:*range: <=2026-02-05
- cpe:2.3:o:dlink:dns-320l_firmware:*:*:*:*:*:*:*:*range: <=2026-02-05
- cpe:2.3:o:dlink:dns-325_firmware:*:*:*:*:*:*:*:*range: <=2026-02-05
cpe:2.3:o:dlink:dns-323_firmware:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:dlink:dns-323_firmware:*:*:*:*:*:*:*:*range: <=2026-02-05
- cpe:2.3:o:dlink:dns-327l_firmware:*:*:*:*:*:*:*:*range: <=2026-02-05
Patches
Vulnerability mechanics
References
5- github.com/wudipjq/my_vuln/blob/main/D-Link8/vuln_165/165.mdnvdExploitThird Party Advisory
- vuldb.com/submit/780434nvdThird Party AdvisoryVDB Entry
- vuldb.com/vuln/354347nvdThird Party AdvisoryVDB Entry
- vuldb.com/vuln/354347/ctinvdPermissions RequiredVDB Entry
- www.dlink.comnvdProduct
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