CVE-2026-3564CRITICAL 9.0EPSS p27.9%

CVE-2026-3564CVE-2026-3564

Description

A condition in ScreenConnect may allow an actor with access to server-level cryptographic material used for authentication to obtain unauthorized access, including elevated privileges, in certain scenarios.

Scoring

CVSS 3.19.0 (CRITICAL)
VectorCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
EPSS0.36% probability of exploitation · percentile 27.9% · 2026-06-19T12:03:05Z
Published2026-03-17
Last modified2026-03-18

Underlying weaknesses· 1

CWE-347

References

  1. https://www.connectwise.com/company/trust/security-bulletins/2026-03-17-screenconnect-bulletin

1

TypeTargetConfidenceTier
WeaknessImproper Verification of Cryptographic Signaturecwe-3470%live

Related by meaning· 6

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

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CVE-2026-0393
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CVE-2026-3999
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ConnectWise ScreenConnect Improper Authentication Vulnerability
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CVE-2026-41086
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CVE-2025-21396
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CVE-2026-11596
Sourced from NVD + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.