diff --git a/icu/source/test/intltest/ssearch.cpp b/icu/source/test/intltest/ssearch.cpp
index a13df7f..615ea53 100644
--- a/icu/source/test/intltest/ssearch.cpp
+++ b/icu/source/test/intltest/ssearch.cpp
@@ -531,12 +531,26 @@ static char *printOffsets(char *buffer, size_t n, OrderList &list)
 
     for(int32_t i = 0; i < size; i += 1) {
         const Order *order = list.get(i);
+        size_t remaining = n - static_cast<size_t>(s - buffer);
+
+        if (remaining == 0) {
+            break;
+        }
 
         if (i != 0) {
-            s += snprintf(s, n, ", ");
+            int32_t written = snprintf(s, remaining, ", ");
+            if (written < 0 || static_cast<size_t>(written) >= remaining) {
+                break;
+            }
+            s += written;
+            remaining -= written;
         }
 
-        s += snprintf(s, n, "(%d, %d)", order->lowOffset, order->highOffset);
+        int32_t written = snprintf(s, remaining, "(%d, %d)", order->lowOffset, order->highOffset);
+        if (written < 0 || static_cast<size_t>(written) >= remaining) {
+            break;
+        }
+        s += written;
     }
 
     return buffer;
@@ -549,12 +563,26 @@ static char *printOrders(char *buffer, size_t n, OrderList &list)
 
     for(int32_t i = 0; i < size; i += 1) {
         const Order *order = list.get(i);
+        size_t remaining = n - static_cast<size_t>(s - buffer);
+
+        if (remaining == 0) {
+            break;
+        }
 
         if (i != 0) {
-            s += snprintf(s, n, ", ");
+            int32_t written = snprintf(s, remaining, ", ");
+            if (written < 0 || static_cast<size_t>(written) >= remaining) {
+                break;
+            }
+            s += written;
+            remaining -= written;
         }
 
-        s += snprintf(s, n, "%8.8X", order->order);
+        int32_t written = snprintf(s, remaining, "%8.8X", order->order);
+        if (written < 0 || static_cast<size_t>(written) >= remaining) {
+            break;
+        }
+        s += written;
     }
 
     return buffer;