CVE-2019-8264CWE-788

UltraVNC revision 1203 has out-of-bounds access vulnerability in VNC client inside Ultra2 decoder, which can potentially result in code execution

published March 9, 2019

CVSS
—
EPSS
3%
Percentile
87.8
In the wild
Unconfirmed
What it is

🚨 An out-of-bounds access vulnerability in UltraVNC's decoder could give attackers a sneaky entry point into your network! Think of it like a delivery service that accidentally opens packages without checking the contents, allowing unauthorized items to slip through. In this case, the VNC client could let a rogue payload in without proper inspection. If left unpatched, an attacker could potentially execute malicious code on your system, which could lead to a complete system compromise. Imagine someone slipping through your front door while you're distracted, ready to wreak havoc!

Put simply

Think of it like a delivery service that accidentally opens packages without checking the contents, allowing unauthorized items to slip through. In this case, the VNC client could let a rogue payload in without proper inspection. This vulnerability occurs in the Ultra2 decoder of the VNC client, where an attacker can exploit out-of-bounds access to execute code remotely via network connectivity.

What to do

If left unpatched, an attacker could potentially execute malicious code on your system, which could lead to a complete system compromise. Imagine someone slipping through your front door while you're distracted, ready to wreak havoc! To protect yourself, upgrade to UltraVNC revision 1204 immediately to patch this vulnerability. Regularly check for updates and consider implementing network security measures that limit access to only trusted sources. You've got this! By following these steps, you'll safeguard your system in no time! 🛡️

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.03129 · 87.8th percentile
Weakness
CWE-788 · Access of Memory Location After End of Buffer
Published
2019-03-09T00:00Z
EPSS history
Timeline
  • 09 MAR 00:00Z
    UltraVNC revision 1203 has out-of-bounds access vulnerability in VNC client inside Ultra2 decoder, which can potentially result in code execution
    cvelistv5