CVE-2026-45584HIGH 8.1EPSS p54.7%

CVE-2026-45584CVE-2026-45584

microsoft / malware_protection_engine

Description

Heap-based buffer overflow in Microsoft Defender allows an unauthorized attacker to execute code over a network.

Scoring

CVSS 3.18.1 (HIGH)
VectorCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS0.85% probability of exploitation · percentile 54.7% · 2026-08-03T12:00:16Z
Published2026-05-20
Last modified2026-07-23

Underlying weaknesses· 1

CWE-122

References

  1. https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45584

1

TypeTargetConfidenceTier
WeaknessHeap-based Buffer Overflowcwe-1220%live

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