CVE-2025-21307CRITICAL 9.8EPSS p76.2%

CVE-2025-21307CVE-2025-21307

Description

Windows Reliable Multicast Transport Driver (RMCAST) Remote Code Execution Vulnerability

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
EPSS1.84% probability of exploitation · percentile 76.2% · 2026-06-18T12:00:27Z
Published2025-01-14
Last modified2025-01-24

Underlying weaknesses· 1

CWE-416

References

  1. https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-21307

1

TypeTargetConfidenceTier
WeaknessUse After Freecwe-4160%live

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