diff --git a/bmc/firmware_handler.cpp b/bmc/firmware_handler.cpp
index 917dbc4..ffe40b1 100644
--- a/bmc/firmware_handler.cpp
+++ b/bmc/firmware_handler.cpp
@@ -755,7 +755,8 @@
 
 bool FirmwareBlobHandler::expire(uint16_t session)
 {
-    return false;
+    abortProcess();
+    return true;
 }
 
 /*
diff --git a/bmc/test/firmware_state_notyetstarted_unittest.cpp b/bmc/test/firmware_state_notyetstarted_unittest.cpp
index b3cfc49..970ae2f 100644
--- a/bmc/test/firmware_state_notyetstarted_unittest.cpp
+++ b/bmc/test/firmware_state_notyetstarted_unittest.cpp
@@ -113,5 +113,18 @@
     EXPECT_TRUE(handler->canHandleBlob(activeHashBlobId));
 }
 
+/*
+ * expire(session)
+ */
+TEST_F(FirmwareHandlerNotYetStartedTest, ExpireOnNotYetStartedAbortsProcess)
+{
+    ASSERT_TRUE(handler->expire(session));
+
+    EXPECT_THAT(handler->getBlobIds(),
+                UnorderedElementsAreArray(startingBlobs));
+
+    expectedState(FirmwareBlobHandler::UpdateState::notYetStarted);
+}
+
 } // namespace
 } // namespace ipmi_flash
diff --git a/bmc/test/firmware_state_updatecompleted_unittest.cpp b/bmc/test/firmware_state_updatecompleted_unittest.cpp
index 7136223..d002499 100644
--- a/bmc/test/firmware_state_updatecompleted_unittest.cpp
+++ b/bmc/test/firmware_state_updatecompleted_unittest.cpp
@@ -245,5 +245,19 @@
     }
 }
 
+/*
+ * expire(session)
+ */
+TEST_F(FirmwareHandlerUpdateCompletedTest, ExpireOnUpdateCompletedAbortsProcess)
+{
+    getToUpdateCompleted(ActionStatus::success);
+
+    ASSERT_TRUE(handler->expire(session));
+    EXPECT_THAT(handler->getBlobIds(),
+                UnorderedElementsAreArray(startingBlobs));
+
+    expectedState(FirmwareBlobHandler::UpdateState::notYetStarted);
+}
+
 } // namespace
 } // namespace ipmi_flash
diff --git a/bmc/test/firmware_state_updatepending_unittest.cpp b/bmc/test/firmware_state_updatepending_unittest.cpp
index 16a6498..5f43259 100644
--- a/bmc/test/firmware_state_updatepending_unittest.cpp
+++ b/bmc/test/firmware_state_updatepending_unittest.cpp
@@ -290,5 +290,20 @@
     expectedState(FirmwareBlobHandler::UpdateState::notYetStarted);
 }
 
+/*
+ * expire(session)
+ */
+TEST_F(FirmwareHandlerUpdatePendingTest, ExpireOnUpdatePendingAborstsProcess)
+{
+    getToUpdatePending();
+
+    EXPECT_CALL(*updateMockPtr, abort()).Times(0);
+
+    ASSERT_TRUE(handler->expire(session));
+    EXPECT_THAT(handler->getBlobIds(),
+                UnorderedElementsAreArray(startingBlobs));
+    expectedState(FirmwareBlobHandler::UpdateState::notYetStarted);
+}
+
 } // namespace
 } // namespace ipmi_flash
diff --git a/bmc/test/firmware_state_updatestarted_unittest.cpp b/bmc/test/firmware_state_updatestarted_unittest.cpp
index 3aa97ed..f187a8e 100644
--- a/bmc/test/firmware_state_updatestarted_unittest.cpp
+++ b/bmc/test/firmware_state_updatestarted_unittest.cpp
@@ -236,5 +236,22 @@
     expectedState(FirmwareBlobHandler::UpdateState::notYetStarted);
 }
 
+/*
+ * expire(session)
+ */
+TEST_F(FirmwareHandlerUpdateStartedTest,
+       ExpireOnUpdateDuringUpdateAbortsProcess)
+{
+    getToUpdateStarted();
+    EXPECT_CALL(*updateMockPtr, abort()).Times(0);
+
+    ASSERT_TRUE(handler->expire(session));
+
+    EXPECT_THAT(handler->getBlobIds(),
+                UnorderedElementsAreArray(startingBlobs));
+
+    expectedState(FirmwareBlobHandler::UpdateState::notYetStarted);
+}
+
 } // namespace
 } // namespace ipmi_flash
diff --git a/bmc/test/firmware_state_uploadinprogress_unittest.cpp b/bmc/test/firmware_state_uploadinprogress_unittest.cpp
index 994ddb1..d5bd3f3 100644
--- a/bmc/test/firmware_state_uploadinprogress_unittest.cpp
+++ b/bmc/test/firmware_state_uploadinprogress_unittest.cpp
@@ -277,5 +277,18 @@
     }
 }
 
+/*
+ * expire(session)
+ */
+TEST_F(FirmwareHandlerUploadInProgressTest, ExpireAbortsProcess)
+{
+    openToInProgress(staticLayoutBlobId);
+
+    ASSERT_TRUE(handler->expire(session));
+    EXPECT_THAT(handler->getBlobIds(),
+                UnorderedElementsAreArray(startingBlobs));
+    expectedState(FirmwareBlobHandler::UpdateState::notYetStarted);
+}
+
 } // namespace
 } // namespace ipmi_flash
diff --git a/bmc/test/firmware_state_verificationcompleted_unittest.cpp b/bmc/test/firmware_state_verificationcompleted_unittest.cpp
index f7b0998..f926223 100644
--- a/bmc/test/firmware_state_verificationcompleted_unittest.cpp
+++ b/bmc/test/firmware_state_verificationcompleted_unittest.cpp
@@ -307,5 +307,19 @@
                 UnorderedElementsAreArray(startingBlobs));
 }
 
+/*
+ * expire(session)
+ */
+TEST_F(FirmwareHandlerVerificationCompletedTest,
+       ExpireAfterVerificationCompletedAborts)
+{
+    getToVerificationCompleted(ActionStatus::failed);
+
+    ASSERT_TRUE(handler->expire(session));
+    expectedState(FirmwareBlobHandler::UpdateState::notYetStarted);
+    EXPECT_THAT(handler->getBlobIds(),
+                UnorderedElementsAreArray(startingBlobs));
+}
+
 } // namespace
 } // namespace ipmi_flash
diff --git a/bmc/test/firmware_state_verificationpending_unittest.cpp b/bmc/test/firmware_state_verificationpending_unittest.cpp
index 3b958c1..dc6f3d3 100644
--- a/bmc/test/firmware_state_verificationpending_unittest.cpp
+++ b/bmc/test/firmware_state_verificationpending_unittest.cpp
@@ -129,6 +129,24 @@
 }
 
 /*
+ * expire(session)
+ */
+TEST_F(FirmwareHandlerVerificationPendingTest,
+       ExpireVerificationPendingAbortsProcess)
+{
+    getToVerificationPending(staticLayoutBlobId);
+
+    EXPECT_CALL(*verifyMockPtr, abort()).Times(0);
+
+    EXPECT_TRUE(handler->expire(session));
+
+    std::vector<std::string> expectedBlobs = {staticLayoutBlobId, hashBlobId};
+    EXPECT_THAT(handler->getBlobIds(),
+                UnorderedElementsAreArray(expectedBlobs));
+    expectedState(FirmwareBlobHandler::UpdateState::notYetStarted);
+}
+
+/*
  * stat(blob)
  */
 TEST_F(FirmwareHandlerVerificationPendingTest, StatOnActiveImageReturnsFailure)
diff --git a/bmc/test/firmware_state_verificationstarted_unittest.cpp b/bmc/test/firmware_state_verificationstarted_unittest.cpp
index df2c422..4f69c89 100644
--- a/bmc/test/firmware_state_verificationstarted_unittest.cpp
+++ b/bmc/test/firmware_state_verificationstarted_unittest.cpp
@@ -284,5 +284,22 @@
     expectedState(FirmwareBlobHandler::UpdateState::notYetStarted);
 }
 
+/*
+ * expire(session)
+ */
+TEST_F(FirmwareHandlerVerificationStartedTest,
+       ExpireOnSessionDuringVerificationAbortsProcess)
+{
+    getToVerificationStarted(staticLayoutBlobId);
+    EXPECT_CALL(*verifyMockPtr, abort()).Times(0);
+
+    EXPECT_TRUE(handler->expire(session));
+
+    EXPECT_THAT(handler->getBlobIds(),
+                UnorderedElementsAreArray(startingBlobs));
+
+    expectedState(FirmwareBlobHandler::UpdateState::notYetStarted);
+}
+
 } // namespace
 } // namespace ipmi_flash