What it is about

ConnectWise ScreenConnect ist eine Softwarelösung für Fernzugriff, Fernsupport und Fernwartung von Computern, Servern, virtuellen Maschinen und mobilen Geräten. Ein entfernter Angreifer kann mehrere Schwachstellen in ConnectWise ScreenConnect ausnutzen, um Informationen offenzulegen oder um Sicherheitsmaßnahmen zu umgehen.

Under what conditions?

Over the network.

What can happen in the worst case

An attacker could use the vulnerability to

• Informationen offenzulegen oder um Sicherheitsmaßnahmen zu umgehen

Am I affected?

Affected according to the BSI:

• ConnectWise ScreenConnect <23.9.8

The installed version is usually shown under “Help → About” or in the device’s admin interface.

What helps?

Update to at least:

• ConnectWise ScreenConnect 23.9.8

Is the vulnerability already being exploited?

• CVE-2024-1708: exploited in the wild according to CISA, in the catalogue since 28.04.2026, also for ransomware.
• CVE-2024-1709: exploited in the wild according to CISA, in the catalogue since 22.02.2024, also for ransomware.
• According to a CISA advisory, used by actors from : #StopRansomware: Medusa Ransomware (03/2025)
• According to a CISA advisory, used by actors from : #StopRansomware: Black Basta (05/2024)