diff --git a/crt/aws-c-cal b/crt/aws-c-cal
index 11fc68445..71810b1ad 160000
--- a/crt/aws-c-cal
+++ b/crt/aws-c-cal
@@ -1 +1 @@
-Subproject commit 11fc68445b2b4993656ed720fc2788f3c4c7c20f
+Subproject commit 71810b1ade7af4747104ae245b74240ae8e8cf77
diff --git a/crt/aws-c-http b/crt/aws-c-http
index d83f8d701..652e2febf 160000
--- a/crt/aws-c-http
+++ b/crt/aws-c-http
@@ -1 +1 @@
-Subproject commit d83f8d70143ddce5ab4e479175fbd44ba994211b
+Subproject commit 652e2febf2242d6b3562267dc0dd982375ed698e
diff --git a/crt/aws-c-io b/crt/aws-c-io
index 878b4fa02..d04508d11 160000
--- a/crt/aws-c-io
+++ b/crt/aws-c-io
@@ -1 +1 @@
-Subproject commit 878b4fa027bda4041493f06e0562d5e98bb3deb8
+Subproject commit d04508d113851f1bc15630d93490b2aa09676137
diff --git a/crt/aws-c-s3 b/crt/aws-c-s3
index 6588f9a71..94edd4747 160000
--- a/crt/aws-c-s3
+++ b/crt/aws-c-s3
@@ -1 +1 @@
-Subproject commit 6588f9a714ee7a8be1bddd63ea5ea1ea224d00b4
+Subproject commit 94edd4747923f3c255c2e1b1766ee9de20a1caf8
diff --git a/crt/aws-lc b/crt/aws-lc
index 4368aaa69..05d3bfd63 160000
--- a/crt/aws-lc
+++ b/crt/aws-lc
@@ -1 +1 @@
-Subproject commit 4368aaa6975ba41bd76d3bb12fac54c4680247fb
+Subproject commit 05d3bfd6303c65d7392dee1a47d6e161c36a04e5
diff --git a/crt/s2n b/crt/s2n
index 114ccab0f..073c7b415 160000
--- a/crt/s2n
+++ b/crt/s2n
@@ -1 +1 @@
-Subproject commit 114ccab0ff2cde491203ac841837d0d39b767412
+Subproject commit 073c7b415a17d271a7b2c8c385d0e641fc94871f
diff --git a/source/io/SocketOptions.cpp b/source/io/SocketOptions.cpp
index c6fac9060..891a2edcc 100644
--- a/source/io/SocketOptions.cpp
+++ b/source/io/SocketOptions.cpp
@@ -15,6 +15,7 @@ namespace Aws
 
             SocketOptions::SocketOptions()
             {
+                AWS_ZERO_STRUCT(options);
                 options.type = AWS_SOCKET_STREAM;
                 options.domain = AWS_SOCKET_IPV4;
                 options.connect_timeout_ms = DEFAULT_SOCKET_TIME_MSEC;