CVE-2026-5211

HIGH

8.8

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.

CVE Details

CVSS v3.1 Score8.8

SeverityHIGH

CVSS VectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredLOW

User InteractionNONE

Published3/31/2026

Last Modified4/2/2026

Sourcenvd

Honeypot Sightings0

Affected Products

dlink:dnr-202ldlink:dnr-202l_firmwaredlink:dnr-326dlink:dnr-326_firmwaredlink:dns-1100-4dlink:dns-1100-4_firmwaredlink:dns-120dlink:dns-1200-05dlink:dns-1200-05_firmwaredlink:dns-120_firmwaredlink:dns-1550-04dlink:dns-1550-04_firmwaredlink:dns-315ldlink:dns-315l_firmwaredlink:dns-320dlink:dns-320_firmwaredlink:dns-320ldlink:dns-320l_firmwaredlink:dns-320lwdlink:dns-320lw_firmwaredlink:dns-321dlink:dns-321_firmwaredlink:dns-322ldlink:dns-322l_firmwaredlink:dns-323dlink:dns-323_firmwaredlink:dns-325dlink:dns-325_firmwaredlink:dns-326dlink:dns-326_firmwaredlink:dns-327ldlink:dns-327l_firmwaredlink:dns-340ldlink:dns-340l_firmwaredlink:dns-343dlink:dns-343_firmwaredlink:dns-345dlink:dns-345_firmwaredlink:dns-726-4dlink:dns-726-4_firmware

Weaknesses (CWE)

CWE-119CWE-121CWE-787

References

https://github.com/wudipjq/my_vuln/blob/main/D-Link8/vuln_165/165.md(cna@vuldb.com)

https://vuldb.com/submit/780434(cna@vuldb.com)

https://vuldb.com/vuln/354347(cna@vuldb.com)

https://vuldb.com/vuln/354347/cti(cna@vuldb.com)

https://www.dlink.com/(cna@vuldb.com)

IOC Correlations

No correlations recorded

This product uses data from the NVD API but is not endorsed or certified by the NVD.