CVE-2026-5211

Summary

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.

Affected Software

VendorProductVersion RangeStatus
D-LinkDNS-12020260205affected
D-LinkDNR-202L20260205affected
D-LinkDNS-315L20260205affected
D-LinkDNS-32020260205affected
D-LinkDNS-320L20260205affected
D-LinkDNS-320LW20260205affected
D-LinkDNS-32120260205affected
D-LinkDNR-322L20260205affected
D-LinkDNS-32320260205affected
D-LinkDNS-32520260205affected
D-LinkDNS-32620260205affected
D-LinkDNS-327L20260205affected
D-LinkDNR-32620260205affected
D-LinkDNS-340L20260205affected
D-LinkDNS-34320260205affected
D-LinkDNS-34520260205affected
D-LinkDNS-726-420260205affected
D-LinkDNS-1100-420260205affected
D-LinkDNS-1200-0520260205affected
D-LinkDNS-1550-0420260205affected

Weaknesses

  • CWE-121: Stack-based Buffer Overflow
  • CWE-119: Memory Corruption

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: poc
    • Automatable: no
    • Technical Impact: partial

References