Hello everyone,
Why is the multiple-connection issue seen as a limitation and not a security exploit? If you have a uvnc server on the internet and you're vnc'd in, your server can be crashed and/or user disconnected 100% of the time.
Frankly, I don't care about multiple connections, I just don't want uvnc behaving like pcanywhere. At the very least, is there a way to block the second incomming connection. The "multi viewer connections" option doesn't stop this from happening, btw.
After more 2 000 000 (two million) views on forum for 1.5.0.x development versions... and 1.6.1.0, 1.6.3.0-dev versions
A new stable version, UltraVNC 1.6.4.0 and UltraVNC SC 1.6.4.0 have been released: https://forum.uvnc.com/viewtopic.php?t=38095
Feedback is always welcome
2025-12-14: 1.7.1.X-dev release builds need tests and feedback: https://forum.uvnc.com/viewtopic.php?t=38134
2025-12-02: We need help: English Wikipedia UltraVNC page has been requested to deletion: https://forum.uvnc.com/viewtopic.php?t=38127
Any help is welcome to improve the UltraVNC page and/or to comment on the Wikipedia Talk page
2025-05-06: Forum password change request: https://forum.uvnc.com/viewtopic.php?t=38078
2023-09-21: Important: Please update to latest version before to create a reply, a topic or an issue: https://forum.uvnc.com/viewtopic.php?t=37864
Development: UltraVNC development is always here... Any help is welcome
Feedback is welcome
A new stable version, UltraVNC 1.6.4.0 and UltraVNC SC 1.6.4.0 have been released: https://forum.uvnc.com/viewtopic.php?t=38095
Feedback is always welcome
2025-12-14: 1.7.1.X-dev release builds need tests and feedback: https://forum.uvnc.com/viewtopic.php?t=38134
2025-12-02: We need help: English Wikipedia UltraVNC page has been requested to deletion: https://forum.uvnc.com/viewtopic.php?t=38127
Any help is welcome to improve the UltraVNC page and/or to comment on the Wikipedia Talk page
2025-05-06: Forum password change request: https://forum.uvnc.com/viewtopic.php?t=38078
2023-09-21: Important: Please update to latest version before to create a reply, a topic or an issue: https://forum.uvnc.com/viewtopic.php?t=37864
Development: UltraVNC development is always here... Any help is welcome
Feedback is welcome
UltraVNC 1.02 / Plugins DOS security exploit!
Re: UltraVNC 1.02 / Plugins DOS security exploit!
It's not a security measure...
If you are using a DSM Plugin, it is 'normal' that the first connection is dropped by the incoming one: the dsmplugin system on server side only supports one connection at a time, by design. We are working on this issue and it's close to be solved.
But it shouldn't crash the server...
If you are using a DSM Plugin, it is 'normal' that the first connection is dropped by the incoming one: the dsmplugin system on server side only supports one connection at a time, by design. We are working on this issue and it's close to be solved.
But it shouldn't crash the server...
UltraSam
