diff --git a/lib/internal/buffer.js b/lib/internal/buffer.js
index 60f6cab093135d..3515626041bbad 100644
--- a/lib/internal/buffer.js
+++ b/lib/internal/buffer.js
@@ -949,7 +949,14 @@ function writeFloatBackwards(val, offset = 0) {
   return offset;
 }
 
-class FastBuffer extends Uint8Array {}
+class FastBuffer extends Uint8Array {
+  // Using an explicit constructor here is necessary to avoid relying on
+  // `Array.prototype[Symbol.iterator]`, which can be mutated by users.
+  // eslint-disable-next-line no-useless-constructor
+  constructor(bufferOrLength, byteOffset, length) {
+    super(bufferOrLength, byteOffset, length);
+  }
+}
 
 function addBufferPrototypeMethods(proto) {
   proto.readBigUInt64LE = readBigUInt64LE;