diff --git a/packages/core/src/integrations/inboundfilters.ts b/packages/core/src/integrations/inboundfilters.ts
index c78b602d3304..9d9f803a69f5 100644
--- a/packages/core/src/integrations/inboundfilters.ts
+++ b/packages/core/src/integrations/inboundfilters.ts
@@ -17,6 +17,7 @@ const DEFAULT_IGNORE_ERRORS = [
   'can\'t redefine non-configurable property "solana"', // Probably a browser extension or custom browser (Brave) throwing this error
   "vv().getRestrictions is not a function. (In 'vv().getRestrictions(1,a)', 'vv().getRestrictions' is undefined)", // Error thrown by GTM, seemingly not affecting end-users
   "Can't find variable: _AutofillCallbackHandler", // Unactionable error in instagram webview https://developers.facebook.com/community/threads/320013549791141/
+  /^Non-Error promise rejection captured with value: Object Not Found Matching Id:\d+, MethodName:simulateEvent, ParamCount:\d+$/, // unactionable error from CEFSharp, a .NET library that embeds chromium in .NET apps
 ];
 
 /** Options for the InboundFilters integration */
diff --git a/packages/core/test/lib/integrations/inboundfilters.test.ts b/packages/core/test/lib/integrations/inboundfilters.test.ts
index 13d6d783adf6..046ee5a168d7 100644
--- a/packages/core/test/lib/integrations/inboundfilters.test.ts
+++ b/packages/core/test/lib/integrations/inboundfilters.test.ts
@@ -269,6 +269,18 @@ const GOOGLETAG_EVENT: Event = {
   },
 };
 
+const CEFSHARP_EVENT: Event = {
+  exception: {
+    values: [
+      {
+        type: 'TypeError',
+        value:
+          'Non-Error promise rejection captured with value: Object Not Found Matching Id:3, MethodName:simulateEvent, ParamCount:1',
+      },
+    ],
+  },
+};
+
 const MALFORMED_EVENT: Event = {
   exception: {
     values: [
@@ -385,6 +397,11 @@ describe('InboundFilters', () => {
       expect(eventProcessor(GOOGLETAG_EVENT, {})).toBe(null);
     });
 
+    it('uses default filters (CEFSharp)', () => {
+      const eventProcessor = createInboundFiltersEventProcessor();
+      expect(eventProcessor(CEFSHARP_EVENT, {})).toBe(null);
+    });
+
     it('filters on last exception when multiple present', () => {
       const eventProcessor = createInboundFiltersEventProcessor({
         ignoreErrors: ['incorrect type given for parameter `chewToy`'],