A samba security update has been released for CentOS 7.

CESA-2021:5192 Important CentOS 7 samba Security Update

CentOS Errata and Security Advisory 2021:5192 Important

Upstream details at :   https://access.redhat.com/errata/RHSA-2021:5192

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

x86_64:
9e8882a42b481017ad43c670ac8c75a3a878d804f43f7716f685798813397a3f ctdb-4.10.16-17.el7_9.x86_64.rpm
d12d34da150d926afed7f5810b9ebdc562f483d0100cdce78091fd464612301d ctdb-tests-4.10.16-17.el7_9.x86_64.rpm
07502ee4563c4bdc09b8d0b67eba7577aae0d6c871501af53b038aad8812d391 libsmbclient-4.10.16-17.el7_9.i686.rpm
e28f306d4893ec7a68589345b053be93e9d807543f263f0bbfd81eacefbc4c10 libsmbclient-4.10.16-17.el7_9.x86_64.rpm
b3350c79767fa9a0a0ac49e9e26cb2d6f221c594bddb72ca5a870a8d7661e0f1 libsmbclient-devel-4.10.16-17.el7_9.i686.rpm
36410412b59ca22b5708b34c6f8dafdb38024efff345c20c4dc28c75a7eb8a0a libsmbclient-devel-4.10.16-17.el7_9.x86_64.rpm
fe31962a7aaae275d7dcbf9efe7364a94ada762b968513d3d783f9e763f8441b libwbclient-4.10.16-17.el7_9.i686.rpm
3fc9b311cc6984896d03711ca684b967577d4370b4c5b037efe81245cfc9a5f2 libwbclient-4.10.16-17.el7_9.x86_64.rpm
09cd4a65244763f9c5d860969f9294414316cc0b7472539300921b5021a3a048 libwbclient-devel-4.10.16-17.el7_9.i686.rpm
39b34f1245a4dd4e09703d7a8fa93bb27414f909eb7514764f934e9248878ee3 libwbclient-devel-4.10.16-17.el7_9.x86_64.rpm
c763f6d47ed5f33b5810818fd094773ac77ca94070088529b832a5189debe293 samba-4.10.16-17.el7_9.x86_64.rpm
4cab2e9389c0bda9927bc8ffb3f5843f6888147fd2ee09109c97a50a8e313dfa samba-client-4.10.16-17.el7_9.x86_64.rpm
594bfd4b3bb5ccb47a34df5c0220769ae40a50c53152652adbcf1803d747d0f3 samba-client-libs-4.10.16-17.el7_9.i686.rpm
5d4abbc89df8da961aa64935f5a986b89626f1f1e99a8728467557a6b761decf samba-client-libs-4.10.16-17.el7_9.x86_64.rpm
ac7d75cd25f6bfa86cdc28cc1059d66db9ae1f53bd0df0d2e026116587b508b0 samba-common-4.10.16-17.el7_9.noarch.rpm
21fa1a95375af231395873580adb9f748d65f91c14f7835244aed1cbf60db644 samba-common-libs-4.10.16-17.el7_9.i686.rpm
46b7ac1c6e8834a1d46051b922ee8bd78569b89c91a40bac7b9886b7f75ed974 samba-common-libs-4.10.16-17.el7_9.x86_64.rpm
1fb9ef577f0e9e4a896981792189019932788dd1325084e83bf11f422ec11e55 samba-common-tools-4.10.16-17.el7_9.x86_64.rpm
793ed94885ccb91d3de9ac0ee3c6ae228181f6d4d90d6c2ba44aeecea596a647 samba-dc-4.10.16-17.el7_9.x86_64.rpm
0c9251da98f68e439285f3e9fe1d2564f460335667000f17d613cca5310aa954 samba-dc-libs-4.10.16-17.el7_9.x86_64.rpm
f086e1ae057782a612a9146ab15a673cb1fc1c351507f164527a1561fe1017e1 samba-devel-4.10.16-17.el7_9.i686.rpm
5a74a6ec4e7d6d8944913ada4270edb09c6f3b75a0b4caba77d076c07bc64964 samba-devel-4.10.16-17.el7_9.x86_64.rpm
18cd5d8d39b9aec1631228c86412a11eed902b967a26b6a64c816e4fcccaff89 samba-krb5-printing-4.10.16-17.el7_9.x86_64.rpm
1b20547bbbfca3c83fa9317da6351d845a3f6ee818efb377f5a74fe92ae5a2fd samba-libs-4.10.16-17.el7_9.i686.rpm
4aab05abd1b63222c6aa994c3754ec20a9d3258f4769449d5e105f718ba5f442 samba-libs-4.10.16-17.el7_9.x86_64.rpm
b6e908a5877e75ecf0c9f0d2e6230660232dc1176edac5fab3ea2fc7d9185753 samba-pidl-4.10.16-17.el7_9.noarch.rpm
622141e5636c218b10a59ecdbd66106cdad2a25b673f891edc0d4b61ac7965f8 samba-python-4.10.16-17.el7_9.i686.rpm
fcfcf89049ecf9f09cbf47f552ddb936bf74e4cd3537825f1c463ce4d4d50c66 samba-python-4.10.16-17.el7_9.x86_64.rpm
0c6ad74477b64388fb061cd59308e5053fb53c352648ac10728050169bb9ac48 samba-python-test-4.10.16-17.el7_9.x86_64.rpm
a7a8c48658f7054decf6176a5bd02e2d560ad065376f79744ce3f8843e7b5f6f samba-test-4.10.16-17.el7_9.x86_64.rpm
bcabaf0d5da539b375bef6f5b408b4c4ec6fb3c207f79f771b9a4349431144f7 samba-test-libs-4.10.16-17.el7_9.i686.rpm
bf842b8211bed6cacf365fa45198ae4376c511311e8e65daff8a87231424ed8f samba-test-libs-4.10.16-17.el7_9.x86_64.rpm
9aaf0e40133fe06566b60b7c5045d71204f986d2fb7aef8c6375d03c80b89120 samba-vfs-glusterfs-4.10.16-17.el7_9.x86_64.rpm
dfa0087b709a643d5c0cd08f474c7f4e2246be49e0ed748ef007f5903a31b544 samba-winbind-4.10.16-17.el7_9.x86_64.rpm
4985ef8243b405acb259897280bebdf83951ffe71af3db3fcf8140797602544b samba-winbind-clients-4.10.16-17.el7_9.x86_64.rpm
0adc9fe4603e83cc02d7181487b5982803e7d1ac319a09428f7f62c4b74d8d3d samba-winbind-krb5-locator-4.10.16-17.el7_9.x86_64.rpm
e2f69cb9ce06dc6e440ee55d4de796bbf6daa032c04f11a93e33ceae0d79eb9c samba-winbind-modules-4.10.16-17.el7_9.i686.rpm
416e2bda192d4d2ef653af8a613b3317548b4dffe2455e834970d920976316a3 samba-winbind-modules-4.10.16-17.el7_9.x86_64.rpm

Source:
3ce0ce2c6b7433fe2d4edf538c0687dacdaefc649533a7779a58a8f604757d36 samba-4.10.16-17.el7_9.src.rpm