CVE-2026-3564: exploitation status and patch state

CVE-2026-3564 · CVSS 9.0 CRITICAL · EPSS <1%

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.

Is CVE-2026-3564 exploited?

• Not in the CISA KEV catalog.
• EPSS puts exploitation in the next 30 days at <1%.
• Public exploit code: none found in monitored sources.

Which products and versions are affected?

No affected package list recorded here yet.

Is there a patch?

No patch identifier recorded here yet.

What PlainSec published about CVE-2026-3564

• ScreenConnect Machine-Key Flaw and SILENTCONNECT Loader (2026-03-21)

Primary sources

• NVD record

What this record does not say

• No affected package data.
• No patch identifier.

KEV and EPSS are re-checked daily. Record last updated 2026-08-11.