A systemd bugfix update has been released for CentOS 7.

CentOS-announce: CEBA-2020:5007 CentOS 7 systemd BugFix Update

CentOS Errata and Bugfix Advisory 2020:5007

Upstream details at :   https://access.redhat.com/errata/RHBA-2020:5007

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

x86_64:
18263e1b0a03802679269ba3b6efec82086ba491183c1ab84bd9de4e5a98c071 libgudev1-219-78.el7_9.2.i686.rpm
aa74fc65a3e070d797d17ec1a51bec20f0c5a1f1ff74f20bd9459369a3b80568 libgudev1-219-78.el7_9.2.x86_64.rpm
841781e279649ca9fced8e74583d9a30e6d5e96023b689f339cd0c6814f8a746 libgudev1-devel-219-78.el7_9.2.i686.rpm
02f065f8fc1a7dad64b3db9dce1c2acf7f0fdb727133ffef1c209fa011adbcd6 libgudev1-devel-219-78.el7_9.2.x86_64.rpm
e786b3b03097afeace07b7db363528e3c435b3fe280d06c8e864a93b15a8448f systemd-219-78.el7_9.2.x86_64.rpm
12c5efd45c7ef298bfb73822c8f3f30c767fb03f40e504e94e3519f825ce6216 systemd-devel-219-78.el7_9.2.i686.rpm
4d766c79e706152df781ac169a04106c6cc571faea5ad9beef0fcae6481c3a5c systemd-devel-219-78.el7_9.2.x86_64.rpm
34ce748bf1845ac8f646607f3776e2995f16c3c1b8ed68775327e24981f1c217 systemd-journal-gateway-219-78.el7_9.2.x86_64.rpm
82b1d1dfa51bb5a8958691fdfa3bcacef757cb4afe47f1a082dab853cf9650d3 systemd-libs-219-78.el7_9.2.i686.rpm
4b1fd0ab7ed6265d09954241b71684d0db26d624318d6cbb227909a3ca804bfc systemd-libs-219-78.el7_9.2.x86_64.rpm
efd9d7f9ca4a7ab583fb075ecf7b7abda7fa92b4657a5d14c6e3ea7f67c30608 systemd-networkd-219-78.el7_9.2.x86_64.rpm
b22820dc39c9c681f704d5e7b608b6d1aecc2fb1a4181df605e69e8a30e70237 systemd-python-219-78.el7_9.2.x86_64.rpm
147bc1295714b7317e539c11b0c800234b512dc4c8c7c1a62598b5f4204f4d68 systemd-resolved-219-78.el7_9.2.i686.rpm
99d7ab7cf207e1519d1bc9faa0e9cce19f934bf8db21f3946902e8b76737c8a7 systemd-resolved-219-78.el7_9.2.x86_64.rpm
45e4431fa6444a15d0292df48fe285761bee76d70d5eda0b7e810f4052b8ed92 systemd-sysv-219-78.el7_9.2.x86_64.rpm

Source:
9a1855de0540d77449ace9d02a4ea080982002ada728144f46b27bee879188e8 systemd-219-78.el7_9.2.src.rpm