PT-2026-29337 · D Link · Dnr-202L+18

Ziyue Xie · Published 2026-03-31 · Updated 2026-03-31 · CVE-2026-5211

Mitre

CVSS v3.1

8.8

High

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

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.

Exploit

Fix

Stack Overflow

Buffer Overflow

Weakness Enumeration

CWE-121

CWE-119

Related Identifiers

CVE-2026-5211

Affected Products

Dnr-202L

Dnr-322L

Dnr-326

Dns-1100-4

Dns-120

Dns-1200-05

Dns-1550-04

Dns-315L

Dns-320

Dns-320L

Dns-321

Dns-323

Dns-325

Dns-326

Dns-327L

Dns-340L

Dns-343

Dns-345

Dns-726-4

References · 6

• 🔥❌ https://github.com/wudipjq/my_vuln/blob/main/D-Link8/vuln_165/165.md · Exploit, Deleted
• https://nvd.nist.gov/vuln/detail/CVE-2026-5211 · Security Note
• https://vuldb.com/vuln/354347 · Note
• https://vuldb.com/vuln/354347/cti · Note
• https://dlink.com · Note
• https://vuldb.com/submit/780434 · Note