CVE-2019-8280CWE-788

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

published March 9, 2019

CVSS
—
EPSS
4%
Percentile
91.0
In the wild
Unconfirmed
What it is

⚠️ A sneaky out-of-bounds access in UltraVNC could open the door for attackers to execute code! This vulnerability lurks in the VNC client’s RAW decoder, making it a potential risk if you're connected to the network. 🔥 Think of it like a restaurant where the server accidentally gives the chef an order card without checking if it’s correct — the chef (your system) might end up cooking something dangerous instead of the intended dish! If exploited, an attacker could execute arbitrary code on your system, leading to unauthorized access and potentially devastating consequences. Imagine someone taking over your computer and doing whatever they please, all because of a little mix-up!

Put simply

Think of it like a restaurant where the server accidentally gives the chef an order card without checking if it’s correct — the chef (your system) might end up cooking something dangerous instead of the intended dish! This out-of-bounds access vulnerability in UltraVNC revision 1203 allows attackers to bypass certain protections and execute malicious code through the VNC client’s RAW decoder, leveraging network connectivity to do so.

What to do

If exploited, an attacker could execute arbitrary code on your system, leading to unauthorized access and potentially devastating consequences. Imagine someone taking over your computer and doing whatever they please, all because of a little mix-up! To safeguard your system, update UltraVNC to revision 1204 immediately. Additionally, review your network configurations to limit exposure. Regularly check for updates to ensure you stay protected! You've got this! With a quick patch, you can seal that vulnerability and keep your system safe. 🛡️

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.04248 · 91.0th 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 RAW decoder, which can potentially result code execution
    cvelistv5