diff --git a/ext/odbc/php_odbc.c b/ext/odbc/php_odbc.c
index ddfbc4edbe5..1d70b7fd19f 100644
--- a/ext/odbc/php_odbc.c
+++ b/ext/odbc/php_odbc.c
@@ -1007,6 +1007,13 @@ int odbc_bindcols(odbc_result *result TSRMLS_DC)
 					rc = SQLColAttributes(result->stmt, (SQLUSMALLINT)(i+1), SQL_COLUMN_DISPLAY_SIZE,
 								NULL, 0, NULL, &displaysize);
 				}
+
+				/* Workaround for drivers that report NVARCHAR(MAX) columns as SQL_WVARCHAR with size 0 (bug #69975) */
+				if (result->values[i].coltype == SQL_WVARCHAR && displaysize == 0) {
+					result->values[i].coltype = SQL_WLONGVARCHAR;
+					result->values[i].value = NULL;
+					break;
+				}
 #endif
 				/* Workaround for Oracle ODBC Driver bug (#50162) when fetching TIMESTAMP column */
 				if (result->values[i].coltype == SQL_TIMESTAMP) {
diff --git a/ext/odbc/tests/bug69975.phpt b/ext/odbc/tests/bug69975.phpt
new file mode 100644
index 00000000000..eca75645198
--- /dev/null
+++ b/ext/odbc/tests/bug69975.phpt
@@ -0,0 +1,32 @@
+--TEST--
+Bug #69975 (PHP segfaults when accessing nvarchar(max) defined columns)
+--SKIPIF--
+<?php include 'skipif.inc'; ?>
+--FILE--
+<?php
+include 'config.inc';
+
+$conn = odbc_connect($dsn, $user, $pass);
+@odbc_exec($conn, 'CREATE DATABASE odbcTEST');
+odbc_exec($conn, 'CREATE TABLE FOO (ID INT, VARCHAR_COL NVARCHAR(MAX))');
+odbc_exec($conn, "INSERT INTO FOO VALUES (1, 'foo')");
+
+$result = odbc_exec($conn, "SELECT VARCHAR_COL FROM FOO");
+var_dump(odbc_fetch_array($result));
+
+echo "ready";
+?>
+--EXPECT--
+array(1) {
+  ["VARCHAR_COL"]=>
+  string(3) "foo"
+}
+ready
+--CLEAN--
+<?php
+include 'config.inc';
+
+$conn = odbc_connect($dsn, $user, $pass);
+odbc_exec($conn, 'DROP TABLE FOO');
+odbc_exec($conn, 'DROP DATABASE odbcTEST');
+?>