UltraVNC revision 1211 contains multiple memory leaks (CWE-665) in VNC server code, which allows an attacker to read stack memory and can be abused for information disclosure. Combined with another vulnerability, it can be used to leak stack memory and bypass ASLR. This attack appears to be exploitable via network connectivity. These vulnerabilities have been fixed in revision 1212.

Related CVEs

CVE-2019-8277

Key Information

GHSA ID

GHSA-w42q-f4mr-jhc4

Published

May 13, 2022 1:09 AM

Last Modified

May 13, 2022 1:09 AM

CVSS Score

7.5 /10

Primary Ecosystem

Unknown

Primary Package

Unknown

GitHub Reviewed

✗ No

Dataset

Last updated: July 4, 2025 6:27 AM

Data from GitHub Advisory Database. This information is provided for research and educational purposes.