diff --git a/snapshot/fuchsia/exception_snapshot_fuchsia.cc b/snapshot/fuchsia/exception_snapshot_fuchsia.cc
index f0f3ffd1..26077696 100644
--- a/snapshot/fuchsia/exception_snapshot_fuchsia.cc
+++ b/snapshot/fuchsia/exception_snapshot_fuchsia.cc
@@ -24,7 +24,7 @@ namespace internal {
 ExceptionSnapshotFuchsia::ExceptionSnapshotFuchsia() = default;
 ExceptionSnapshotFuchsia::~ExceptionSnapshotFuchsia() = default;
 
-void ExceptionSnapshotFuchsia::Initialize(
+bool ExceptionSnapshotFuchsia::Initialize(
     ProcessReaderFuchsia* process_reader,
     zx_koid_t thread_id,
     const zx_exception_report_t& exception_report) {
@@ -61,22 +61,26 @@ void ExceptionSnapshotFuchsia::Initialize(
                    [thread_id](const ProcessReaderFuchsia::Thread& thread) {
                      return thread.id == thread_id;
                    });
-  if (t != threads.end()) {
+  if (t == threads.end()) {
+    // If no threads have been read, then context_ can't be initalized, and the
+    // exception snapshot can't be considered initialized_.
+    return false;
+  }
+
 #if defined(ARCH_CPU_X86_64)
-    context_.architecture = kCPUArchitectureX86_64;
-    context_.x86_64 = &context_arch_;
-    // TODO(fxbug.dev/5496): Add float context once saved in |t|.
-    InitializeCPUContextX86_64_NoFloatingPoint(t->general_registers,
-                                               context_.x86_64);
+  context_.architecture = kCPUArchitectureX86_64;
+  context_.x86_64 = &context_arch_;
+  // TODO(fxbug.dev/5496): Add float context once saved in |t|.
+  InitializeCPUContextX86_64_NoFloatingPoint(t->general_registers,
+                                             context_.x86_64);
 #elif defined(ARCH_CPU_ARM64)
-    context_.architecture = kCPUArchitectureARM64;
-    context_.arm64 = &context_arch_;
-    InitializeCPUContextARM64(
-        t->general_registers, t->vector_registers, context_.arm64);
+  context_.architecture = kCPUArchitectureARM64;
+  context_.arm64 = &context_arch_;
+  InitializeCPUContextARM64(
+      t->general_registers, t->vector_registers, context_.arm64);
 #else
 #error Port.
 #endif
-  }
 
   if (context_.InstructionPointer() != 0 &&
       (exception_ == ZX_EXCP_UNDEFINED_INSTRUCTION ||
@@ -94,6 +98,7 @@ void ExceptionSnapshotFuchsia::Initialize(
   }
 
   INITIALIZATION_STATE_SET_VALID(initialized_);
+  return true;
 }
 
 const CPUContext* ExceptionSnapshotFuchsia::Context() const {
diff --git a/snapshot/fuchsia/exception_snapshot_fuchsia.h b/snapshot/fuchsia/exception_snapshot_fuchsia.h
index 0a571e6e..31269446 100644
--- a/snapshot/fuchsia/exception_snapshot_fuchsia.h
+++ b/snapshot/fuchsia/exception_snapshot_fuchsia.h
@@ -44,7 +44,10 @@ class ExceptionSnapshotFuchsia final : public ExceptionSnapshot {
   //! \param[in] thread_id The koid of the thread that sustained the exception.
   //! \param[in] exception_report The `zx_exception_report_t` retrieved from the
   //!     thread in the exception state, corresponding to \a thread_id.
-  void Initialize(ProcessReaderFuchsia* process_reader,
+  //!
+  //! \return `true` if the exception data was initialized, `false` otherwise
+  //!     with an error logged.
+  bool Initialize(ProcessReaderFuchsia* process_reader,
                   zx_koid_t thread_id,
                   const zx_exception_report_t& exception_report);
 
@@ -63,7 +66,7 @@ class ExceptionSnapshotFuchsia final : public ExceptionSnapshot {
 #elif defined(ARCH_CPU_ARM64)
   CPUContextARM64 context_arch_;
 #endif
-  CPUContext context_ = {};
+  CPUContext context_;
   std::vector<uint64_t> codes_;
   zx_koid_t thread_id_;
   zx_vaddr_t exception_address_;
diff --git a/snapshot/fuchsia/process_snapshot_fuchsia.cc b/snapshot/fuchsia/process_snapshot_fuchsia.cc
index 294c9f90..d36335c5 100644
--- a/snapshot/fuchsia/process_snapshot_fuchsia.cc
+++ b/snapshot/fuchsia/process_snapshot_fuchsia.cc
@@ -59,9 +59,14 @@ bool ProcessSnapshotFuchsia::InitializeException(
     zx_koid_t thread_id,
     const zx_exception_report_t& report) {
   INITIALIZATION_STATE_DCHECK_VALID(initialized_);
-  exception_.reset(new internal::ExceptionSnapshotFuchsia());
-  exception_->Initialize(&process_reader_, thread_id, report);
-  return true;
+
+  std::unique_ptr<internal::ExceptionSnapshotFuchsia> exception(
+      new internal::ExceptionSnapshotFuchsia());
+  if (exception->Initialize(&process_reader_, thread_id, report)) {
+    exception_.swap(exception);
+    return true;
+  }
+  return false;
 }
 
 void ProcessSnapshotFuchsia::GetCrashpadOptions(