vulnerability
Red Hat: CVE-2018-21247: CVE-2018-21247 libvncserver: uninitialized memory contents are vulnerable to Information Leak (Multiple Advisories)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 5 | (AV:N/AC:L/Au:N/C:P/I:N/A:N) | Jun 17, 2020 | May 21, 2021 | Mar 27, 2026 |
Severity
5
CVSS
(AV:N/AC:L/Au:N/C:P/I:N/A:N)
Published
Jun 17, 2020
Added
May 21, 2021
Modified
Mar 27, 2026
Description
An issue was discovered in LibVNCServer before 0.9.13. There is an information leak (of uninitialized memory contents) in the libvncclient/rfbproto.c ConnectToRFBRepeater function.
Solutions
redhat-upgrade-libvncserverredhat-upgrade-libvncserver-debuginforedhat-upgrade-libvncserver-debugsourceredhat-upgrade-libvncserver-devel
Rapid7 Labs
2026 Global Threat Landscape Report
The predictive window has collapsed. Exploitation follows disclosure in days. See how attackers are accelerating and how to stay ahead.