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TightVNC 4.0.2 Released to Address Remote Control Issues

TightVNC 4.0.2 Released to Address Remote Control Issues

First seen 29 Oct 2026, 21:44 UTC •
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ThreatCluster AI
ThreatCluster •October 30, 2026 at 09:46 UTC
  • •TightVNC 4.0.2 fixes critical remote control issues.
  • •Version 4.0.0 introduced enhanced security features including TLS 1.3 encryption.
  • •TightVNC 2.x will still receive maintenance updates.

TightVNC has released version 4.0.2 to fix a black screen issue and loss of remote control when a User Account Control (UAC) prompt appears with the 'Connect to RDP session' option enabled. The update also resolves problems with saving Viewer settings and connection history, and restores the Attach Listening Viewer dialog. This maintenance release improves diagnostic logging and includes several other fixes for both the Server and Viewer components. The previous major update, TightVNC 4.0.0, introduced stronger password protection and a redesigned security model, including full session encryption for Pro users. TightVNC 2 remains available under the GNU GPL and will continue to receive maintenance updates. Users are encouraged to upgrade to the latest version for improved functionality and security.

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Timeline

2026-10-25
TightVNC 4.0.0 released
TightVNC 4.0.0 introduced a new security model and stronger password protection features.
TightVNC
2026-10-29
TightVNC 4.0.2 maintenance release
Version 4.0.2 addresses black screen issues and improves connection handling.
TightVNC

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Common questions

What issues does TightVNC 4.0.2 fix?
It resolves a black screen issue and loss of remote control during UAC prompts, among other fixes.
What are the new features in TightVNC 4.0.0?
It introduced stronger password protection, a redesigned security model, and full session encryption for Pro users.
Is TightVNC 2 still supported?
Yes, TightVNC 2 will continue to receive maintenance and security updates.