CVE-2021-3182

High

Published: 19 January 2021

Published

19 January 2021

Modified

21 November 2024

KEV Added

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Patch

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CVSS Score v3.1 8.0 CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS Score 0.0016 36.2th percentile

Risk Priority 16 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2021-3182 is a high-severity Out-of-bounds Write (CWE-787) vulnerability in Dlink Dcs-5220 Firmware. Its CVSS base score is 8.0 (High).

Operationally, ranked at the 36.2th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

D-Link DCS-5220 devices have a buffer overflow. NOTE: This vulnerability only affects products that are no longer supported by the maintainer

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

dlink

dcs-5220 firmware

all versions

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

addresses: CWE-120

Platform-independent managed code eliminates the need for unchecked native buffer copies that are the root cause of classic buffer overflows.

addresses: CWE-787

Out-of-bounds writes that corrupt control flow or inject shellcode are rendered non-executable by the same memory protections.