CVE-2026-4214CRITICAL 9.8EPSS p51.5%

CVE-2026-4214CVE-2026-4214

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 issue affects the function UPnP_AV_Server_Path_Setting of the file /cgi-bin/app_mgr.cgi. Executing a manipulation can lead to stack-based buffer overflow. The attack may be launched remotely. The exploit has been published and may be used.

Scoring

CVSS 3.19.8 (CRITICAL)
VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS0.79% probability of exploitation · percentile 51.5% · 2026-06-18T12:00:27Z
Published2026-03-16
Last modified2026-03-19

Underlying weaknesses· 3

CWE-119CWE-121CWE-787

References

  1. https://github.com/wudipjq/my_vuln/blob/main/D-Link8/vuln_164/164.md
  2. https://vuldb.com/?ctiid.351125
  3. https://vuldb.com/?id.351125
  4. https://vuldb.com/?submit.770445
  5. https://www.dlink.com/

3

TypeTargetConfidenceTier
WeaknessImproper Restriction of Operations within the Bounds of a Memory Buffercwe-1190%live
WeaknessStack-based Buffer Overflowcwe-1210%live
WeaknessOut-of-bounds Writecwe-7870%live

Related by meaning· 6

Nearest entities by semantic similarity across the cs-graph corpus.

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Sourced from NVD + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.