Updated samba packages are available for both CentOS 6 and 7:

CESA-2016:1486 Moderate CentOS 7 samba Security Update
CESA-2016:1487 Moderate CentOS 6 samba4 Security Update

CESA-2016:1486 Moderate CentOS 7 samba Security Update

CentOS Errata and Security Advisory 2016:1486 Moderate

Upstream details at : https://rhn.redhat.com/errata/RHSA-2016-1486.html

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

x86_64:
af316ded6583e6970f213f1faa30a355594d2933f688a907ce565d564e40cdca ctdb-4.2.10-7.el7_2.x86_64.rpm
936138ac2d66d5989658814b31b59486ab276537345393408de3efdb78431cce ctdb-devel-4.2.10-7.el7_2.i686.rpm
2437457d7d9812367bbd51f8c6517a9a9d15c529d1d5983ece129f8f459bab8a ctdb-devel-4.2.10-7.el7_2.x86_64.rpm
e714cab79fe0103cd66ddbd46ae74c68e84cdbd7ffe0a34d1efa5b38b9ff1ffc ctdb-tests-4.2.10-7.el7_2.x86_64.rpm
eb97c7a86e94546b1180f9ab367121a16a486bd366ae12c6e468d561b2d12f48 libsmbclient-4.2.10-7.el7_2.i686.rpm
67f1de3814404a15e92b9787b058ec92a4db857ef761d8b57fc0352f94ab180b libsmbclient-4.2.10-7.el7_2.x86_64.rpm
323283146f2e2d90737dffc367f747e414fd368d6ecf692369501ca2fd97359e libsmbclient-devel-4.2.10-7.el7_2.i686.rpm
0844d470c626f3054dc2d75a9ec6f49732ea6dfe585391a40d14553310626418 libsmbclient-devel-4.2.10-7.el7_2.x86_64.rpm
e48e898aca04edd11ccc3a162d6c62e29a0b0f1d039be2f38b680b640671dff4 libwbclient-4.2.10-7.el7_2.i686.rpm
2b8df119f520e430163bf32247d177b2d1d51b8179c6dcbdc8b7fc7d47bbc28c libwbclient-4.2.10-7.el7_2.x86_64.rpm
3ccc0bf2449d3b9fdd7ffdb5d7f1cef0190d5f30a02e2a7622e0df31afdf7fb5 libwbclient-devel-4.2.10-7.el7_2.i686.rpm
a4a4ce957fe9d636ee6caa9fbab1b1c7f295768d03acfcdbadc1dee1bd4608c3 libwbclient-devel-4.2.10-7.el7_2.x86_64.rpm
f5c64b664496854190fc63f88afdea510e879e4e4f46ebc0d8b4480f34315157 samba-4.2.10-7.el7_2.x86_64.rpm
3bdfe254ea4e1461fb55476cd9cf69a08a38b76dc0386ec5044344c5fc815782 samba-client-4.2.10-7.el7_2.x86_64.rpm
06041291bbacaa65968e5c15e65d7fb28846840b192139581d9aa19bf6d05beb samba-client-libs-4.2.10-7.el7_2.i686.rpm
8c31c60f8cc270b7e86d4b5f7dd3c3db9c060e5e75673b3a3337eb6420b93855 samba-client-libs-4.2.10-7.el7_2.x86_64.rpm
622825dd58550cf8e98d247d079f82e3d2c2d44333f7193ba7b1e637a15c83cf samba-common-4.2.10-7.el7_2.noarch.rpm
d24f24bb3964e31cd59c69df78bfeefeca1c75a134174df0be364757b1b33888 samba-common-libs-4.2.10-7.el7_2.x86_64.rpm
79d46ce115fa8a5ed8dff5323f9fcd48380d53eb5b215461359b2f7b5adf7364 samba-common-tools-4.2.10-7.el7_2.x86_64.rpm
0e2649cb2ffa3cc1bc46adc717398302fafd19505920d670dcc19d765115ba82 samba-dc-4.2.10-7.el7_2.x86_64.rpm
017330cf223292625dbc706174271ea578c6873b2d41fa0e861e78c6c4b6b5a0 samba-dc-libs-4.2.10-7.el7_2.x86_64.rpm
29070202ccdd99d8658e87c71ce712f1f06d5cc3534b4d90990ab41a0e4cd369 samba-devel-4.2.10-7.el7_2.i686.rpm
4e03c1dfc3ecc77687cfeb51990634bdcbdc5768d92bf950815c831a7e40f585 samba-devel-4.2.10-7.el7_2.x86_64.rpm
976eac8aa4c6ef40fa3308507e7c57531fd305c0ea9426a8b95409f8e18e62aa samba-libs-4.2.10-7.el7_2.i686.rpm
7c3994acb7c3a4d0a2522b042f77a87e9220fc4f458b7cce8dd3f60fc2b614ca samba-libs-4.2.10-7.el7_2.x86_64.rpm
d1f892959838210f6f63f7dc892068e5bde85dea22ec14db0a97b084501cb306 samba-pidl-4.2.10-7.el7_2.noarch.rpm
1f926bf228383a34160a83ab1f90aa4ff8c8e54cff12cba2f558f0725b30e76e samba-python-4.2.10-7.el7_2.x86_64.rpm
5ffff01abf79e9328726d7029e3a638ff5782aa43b2d9de433c4d5814fc444fe samba-test-4.2.10-7.el7_2.x86_64.rpm
e4f4067424a3ac0370a8566871a82f4edb32e9baa398b977792f3f0b57b5715f samba-test-devel-4.2.10-7.el7_2.x86_64.rpm
b507771944911796d6c59ec48f88af307260e19b3836d228cfdfd358969d59bf samba-test-libs-4.2.10-7.el7_2.i686.rpm
aa964f62ae380e44cd124a25368824748e5d20e55102415068ffb9ba697c65a6 samba-test-libs-4.2.10-7.el7_2.x86_64.rpm
697eb0bcb08507645e0a1978a29ca134c3b7fd71fb9e77a6b887adcd8ecd92da samba-vfs-glusterfs-4.2.10-7.el7_2.x86_64.rpm
107884a502a8e44131bd7aeeba02317d211b0a52c37a7154441e48ca1cdad693 samba-winbind-4.2.10-7.el7_2.x86_64.rpm
acb9021d7339bf06f64b91701082181a1cb1679349c14b47a58c73d7b5cb77a3 samba-winbind-clients-4.2.10-7.el7_2.x86_64.rpm
312cf5c2e79134cb905b6ce69867ee7935889349841ff30108242117225fc9d4 samba-winbind-krb5-locator-4.2.10-7.el7_2.x86_64.rpm
9045f7ec36fc584fc0051f7e42a546df2c347a167de3a73869e6a7c9d8c5ee15 samba-winbind-modules-4.2.10-7.el7_2.i686.rpm
adf85c04209ca4ed846c8529df8d7fde3148e40d4c2bd635f557e9fc41c3ad4a samba-winbind-modules-4.2.10-7.el7_2.x86_64.rpm

Source:
2ea1482b434b0a735289ccb72fcff96b31a10bdeca0d9529bb9bfefd8e12c651 samba-4.2.10-7.el7_2.src.rpm

CESA-2016:1487 Moderate CentOS 6 samba4 Security Update

CentOS Errata and Security Advisory 2016:1487 Moderate

Upstream details at : https://rhn.redhat.com/errata/RHSA-2016-1487.html

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

i386:
15ca4750033d29a32719504ad067bb3805160d450ddf7b02700e65c947cabbb5 samba4-4.2.10-7.el6_8.i686.rpm
9a2b1aaa5d71e4c97b5c0a39eab87f3b4da78fe092a1a628a3968095853dfc2b samba4-client-4.2.10-7.el6_8.i686.rpm
123b5d516da53b7f51f1ae20ee5405d8945ae5fe517bce96fc15d8e16dd10d04 samba4-common-4.2.10-7.el6_8.i686.rpm
c614eabb0e29080218b4b2e9b44327fdd49d8db55c56902d6c2674721468fca3 samba4-dc-4.2.10-7.el6_8.i686.rpm
ad13e18c084b6e732cd3d1f31217f9a22529e7d18885272c5c50ba359d918a58 samba4-dc-libs-4.2.10-7.el6_8.i686.rpm
684ef297850f61cc20784f73cb6de83cc30d9e5b7ccf43e404ef774ffc25d2a9 samba4-devel-4.2.10-7.el6_8.i686.rpm
43bb61576a448b2f60db213590286ea77028fad675c334f7b3493e1fa1dd6eec samba4-libs-4.2.10-7.el6_8.i686.rpm
ed4eef4ce872eb656966c4b9f9b699831e49373fc92256fea881a6b053abca75 samba4-pidl-4.2.10-7.el6_8.i686.rpm
a5d8a4f6791cc610a943d0beac34e9af3e66200a53d4b4d54c93ff8ffd5b8af3 samba4-python-4.2.10-7.el6_8.i686.rpm
8315a57e03b24438c0ee707fe11886679822d1b892e430a1670f430ffc018248 samba4-test-4.2.10-7.el6_8.i686.rpm
c0a862d6481de5fa9168ea63a3b3339e6173bd04dc32edef60d20f3f9e4aab54 samba4-winbind-4.2.10-7.el6_8.i686.rpm
23dada0999a40a86bb66737af5475cf520f636c750031e3101a8e96bb6b3a6f7 samba4-winbind-clients-4.2.10-7.el6_8.i686.rpm
a59f9ab48aca42c498978f60efc81142f79aac9b1f65ff03a257e178f4a58ba9 samba4-winbind-krb5-locator-4.2.10-7.el6_8.i686.rpm

x86_64:
b6dc22d385573d976b7497562654427dbf7c68e9a353d00f85281f10cf94f284 samba4-4.2.10-7.el6_8.x86_64.rpm
873205cd2c05747991f348491aed2520c1fbb10290ec7dfd83efa40c57abbff4 samba4-client-4.2.10-7.el6_8.x86_64.rpm
d3ecbf5c375999735d6a72681b1e02dd866b2d097c8f958ef05c2f265df85e74 samba4-common-4.2.10-7.el6_8.x86_64.rpm
1ee374da3e6d9997e3213f77632c67760002d2349fe967a98021014d84f7bd65 samba4-dc-4.2.10-7.el6_8.x86_64.rpm
47d7e7079c2540d4029022ca6a7f90886172e005c079ef8dcc3636106ea9d695 samba4-dc-libs-4.2.10-7.el6_8.x86_64.rpm
dae07ad1fbfbf17f6586d2b21f573227a0c295fc60bce4ed7064c5c76d31b05f samba4-devel-4.2.10-7.el6_8.x86_64.rpm
99191c51f9f48b05a5689e2ef32506a10206c15cccf6f76bc5cdf969b314e839 samba4-libs-4.2.10-7.el6_8.x86_64.rpm
7471a4a94c3527e359ffcb781aead43c42453dfc5ce59670ba8dffd1c1b052ad samba4-pidl-4.2.10-7.el6_8.x86_64.rpm
6022b996f92b9f89ca75ebf66a132e5f08e304b340169f51c43dc0b4d9280d52 samba4-python-4.2.10-7.el6_8.x86_64.rpm
1da80174aa99318d2dcea3040ff32e4f259b5c10ce866fde1b09e0ad3018e11d samba4-test-4.2.10-7.el6_8.x86_64.rpm
983f26cc1cfdc61ab632caf169dcf813f037fb728770af91bae6f6aca334dbda samba4-winbind-4.2.10-7.el6_8.x86_64.rpm
f7e48ee612915fb163557534eae43a77d5a3cc8ab889f98fb0f1b978ab1f3aaf samba4-winbind-clients-4.2.10-7.el6_8.x86_64.rpm
6d7cc5c92847f1299e6235c1657c4832c91b921e1ae65ea4d797f223d0b38719 samba4-winbind-krb5-locator-4.2.10-7.el6_8.x86_64.rpm

Source:
92590118ebb6c8d0ca75215616607dd793aedb2eb52b0c3caf1e9ee5cca2f489 samba4-4.2.10-7.el6_8.src.rpm