diff --git a/lib/hci-socket/hci.js b/lib/hci-socket/hci.js
index 9cc9fa31..21bbcb4c 100644
--- a/lib/hci-socket/hci.js
+++ b/lib/hci-socket/hci.js
@@ -1235,6 +1235,12 @@ Hci.prototype.processLeAdvertisingReport = function (numReports, data) {
 Hci.prototype.processLeExtendedAdvertisingReport = function (numReports, data) {
   try {
     for (let i = 0; i < numReports; i++) {
+      if (data.length < 24) {
+        console.warn(
+          `processLeExtendedAdvertisingReport: Caught illegal packet (too short: ${data.length} < 24)`
+        );
+        break;
+      }
       const type = data.readUInt16LE(0);
       const addressType = data.readUInt8(2) === 0x01 ? 'random' : 'public';
       const address = data
@@ -1258,6 +1264,12 @@ Hci.prototype.processLeExtendedAdvertisingReport = function (numReports, data) {
         .reverse()
         .join(':');
       const eirLength = data.readUInt8(23);
+      if (data.length < 24 + eirLength) {
+        console.warn(
+          `processLeExtendedAdvertisingReport: Caught illegal packet (eir length ${eirLength} exceeds remaining ${data.length - 24})`
+        );
+        break;
+      }
       const eir = data.slice(24);
 
       debug(`\t\t\ttype = ${type}`);
diff --git a/test/lib/hci-socket/hci.test.js b/test/lib/hci-socket/hci.test.js
index c4fd73b5..44efafb7 100644
--- a/test/lib/hci-socket/hci.test.js
+++ b/test/lib/hci-socket/hci.test.js
@@ -1891,8 +1891,12 @@ describe('hci-socket hci', () => {
   describe('processLeExtendedAdvertisingReport', () => {
     it('should emit without error', () => {
       const count = 2;
-      const data1 = Buffer.from([0, 1, 0xaa, 0xbb, 0xcc, 0xdd, 0xee, 0xff, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 0]);
-      const data2 = Buffer.from([1, 0, 0xff, 0xee, 0xdd, 0xcc, 0xbb, 0xaa, 4, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27]);
+      const eir1 = Buffer.from([0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17]);
+      const header1 = Buffer.from([0, 1, 0xaa, 0xbb, 0xcc, 0xdd, 0xee, 0xff, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, eir1.length]);
+      const data1 = Buffer.concat([header1, eir1]);
+      const eir2 = Buffer.from([0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27]);
+      const header2 = Buffer.from([1, 0, 0xff, 0xee, 0xdd, 0xcc, 0xbb, 0xaa, 4, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, eir2.length]);
+      const data2 = Buffer.concat([header2, eir2]);
       const data = Buffer.concat([data1, data2]);
       const callback = sinon.spy();
 
@@ -1904,7 +1908,9 @@ describe('hci-socket hci', () => {
 
     it('should emit only once with random address', () => {
       const count = 1;
-      const data = Buffer.from([0, 1, 1, 0xaa, 0xbb, 0xcc, 0xdd, 0xee, 0xff, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23]);
+      const eir = Buffer.from([0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17]);
+      const header = Buffer.from([0, 1, 1, 0xaa, 0xbb, 0xcc, 0xdd, 0xee, 0xff, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, eir.length]);
+      const data = Buffer.concat([header, eir]);
       const callback = sinon.spy();
 
       hci.on('leExtendedAdvertisingReport', callback);
@@ -1915,7 +1921,9 @@ describe('hci-socket hci', () => {
 
     it('should emit only once with public address', () => {
       const count = 1;
-      const data = Buffer.from([0, 1, 2, 0xff, 0xee, 0xdd, 0xcc, 0xbb, 0xaa, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23]);
+      const eir = Buffer.from([0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17]);
+      const header = Buffer.from([0, 1, 2, 0xff, 0xee, 0xdd, 0xcc, 0xbb, 0xaa, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, eir.length]);
+      const data = Buffer.concat([header, eir]);
       const callback = sinon.spy();
 
       hci.on('leExtendedAdvertisingReport', callback);
@@ -1937,6 +1945,41 @@ describe('hci-socket hci', () => {
       assert.notCalled(callback);
       expect(consoleSpy).toHaveBeenCalledWith(expect.stringContaining('illegal packet'));
     });
+
+    it('should ignore too-short extended report without throwing', () => {
+      const count = 1;
+      const data = Buffer.alloc(10);
+      const callback = sinon.spy();
+
+      const consoleSpy = jest.spyOn(console, 'warn').mockImplementation(() => {});
+
+      hci.on('leExtendedAdvertisingReport', callback);
+      hci.processLeExtendedAdvertisingReport(count, data);
+
+      assert.notCalled(callback);
+      expect(consoleSpy.mock.calls.some((call) => String(call[0]).includes('too short'))).toBe(true);
+      consoleSpy.mockRestore();
+    });
+
+    it('should ignore extended report with oversized eir length', () => {
+      const count = 1;
+      const data = Buffer.from([
+        0, 1, 2, 0xff, 0xee, 0xdd, 0xcc, 0xbb, 0xaa,
+        2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15,
+        200, // eirLength larger than remaining bytes
+        0x01, 0x02, 0x03,
+      ]);
+      const callback = sinon.spy();
+
+      const consoleSpy = jest.spyOn(console, 'warn').mockImplementation(() => {});
+
+      hci.on('leExtendedAdvertisingReport', callback);
+      hci.processLeExtendedAdvertisingReport(count, data);
+
+      assert.notCalled(callback);
+      expect(consoleSpy.mock.calls.some((call) => String(call[0]).includes('eir length'))).toBe(true);
+      consoleSpy.mockRestore();
+    });
   });
 
   it('processLeConnUpdateComplete', () => {