A tigervnc security update has been released for CentOS 7.

CESA-2023:0045 Important CentOS 7 tigervnc Security Update

CentOS Errata and Security Advisory 2023:0045 Important

Upstream details at :   https://access.redhat.com/errata/RHSA-2023:0045

The following updated files have been uploaded and are currently
syncing to the mirrors: ( sha256sum Filename )

x86_64:
d1d5c6c9105983f9ee30842fcf4a13fb9df2c9ee2104e6df95600984d8d0c9ed tigervnc-1.8.0-23.el7_9.x86_64.rpm
626a2e289d1c398ebfec878eca2a5a697890c2e6865f803db0f2579642b2b421 tigervnc-icons-1.8.0-23.el7_9.noarch.rpm
472c45bad9fc5ff6c17193d9dfb942a7291f6edc650f2c9c6c14dbd3dbd515b0 tigervnc-license-1.8.0-23.el7_9.noarch.rpm
73aa4d41c028013891614d9b96e424d2511ce51af87ead1125bd84075eba4b04 tigervnc-server-1.8.0-23.el7_9.x86_64.rpm
ca2161cc3876646306f0db5c0e9ef5cbff21e55e209ba8bb3bea3329c4748d0a tigervnc-server-applet-1.8.0-23.el7_9.noarch.rpm
81ec5721e33cf86aa5a19edb4af8269a95b79b41d2afc6f593319894b7fd8cf4 tigervnc-server-minimal-1.8.0-23.el7_9.x86_64.rpm
d4212ad62f054bb8defbdd91f8b8be6d7cd36ab2c646d79f0ec7c7e36b8a2409 tigervnc-server-module-1.8.0-23.el7_9.x86_64.rpm

Source:
369a89f8761aa6f77556c4685451d7f024cf7a5572b1cdb38153b5b66e273902 tigervnc-1.8.0-23.el7_9.src.rpm