diff --git a/libwvdrmengine/cdm/core/include/wv_cdm_constants.h b/libwvdrmengine/cdm/core/include/wv_cdm_constants.h
index 8249782a..c04e2149 100644
--- a/libwvdrmengine/cdm/core/include/wv_cdm_constants.h
+++ b/libwvdrmengine/cdm/core/include/wv_cdm_constants.h
@@ -87,6 +87,7 @@ static const std::string QUERY_KEY_DECRYPT_HASH_SUPPORT =
 
 static const std::string QUERY_VALUE_TRUE = "True";
 static const std::string QUERY_VALUE_FALSE = "False";
+static const std::string QUERY_VALUE_NONE = "None";
 static const std::string QUERY_VALUE_STREAMING = "Streaming";
 static const std::string QUERY_VALUE_OFFLINE = "Offline";
 static const std::string QUERY_VALUE_SECURITY_LEVEL_L1 = "L1";
diff --git a/libwvdrmengine/cdm/core/src/cdm_engine.cpp b/libwvdrmengine/cdm/core/src/cdm_engine.cpp
index 8f2a6a30..ed1b4ee4 100644
--- a/libwvdrmengine/cdm/core/src/cdm_engine.cpp
+++ b/libwvdrmengine/cdm/core/src/cdm_engine.cpp
@@ -631,7 +631,10 @@ CdmResponseType CdmEngine::QueryStatus(SecurityLevel security_level,
   } else if (query_token == QUERY_KEY_CURRENT_SRM_VERSION) {
     uint16_t current_srm_version;
     status = crypto_session->GetSrmVersion(&current_srm_version);
-    if (status != NO_ERROR) {
+    if (status == NOT_IMPLEMENTED_ERROR) {
+      *query_response = QUERY_VALUE_NONE;
+      return NO_ERROR;
+    } else if (status != NO_ERROR) {
       LOGW("CdmEngine::QueryStatus: GetCurrentSRMVersion failed: %d", status);
       return status;
     }
diff --git a/libwvdrmengine/cdm/core/src/crypto_session.cpp b/libwvdrmengine/cdm/core/src/crypto_session.cpp
index 6b4a8c04..8b383945 100644
--- a/libwvdrmengine/cdm/core/src/crypto_session.cpp
+++ b/libwvdrmengine/cdm/core/src/crypto_session.cpp
@@ -1856,6 +1856,14 @@ CdmResponseType CryptoSession::GetSrmVersion(uint16_t* srm_version) {
 
   OEMCryptoResult status = OEMCrypto_GetCurrentSRMVersion(srm_version);
 
+  // SRM is an optional feature. Whether it is implemented is up to the
+  // discretion of OEMs
+  if (status == OEMCrypto_ERROR_NOT_IMPLEMENTED) {
+    LOGV("CryptoSession::GetSrmVersion: OEMCrypto_GetCurrentSRMVersion not "
+         "implemented");
+    return NOT_IMPLEMENTED_ERROR;
+  }
+
   return MapOEMCryptoResult(
       status, GET_SRM_VERSION_ERROR, "GetCurrentSRMVersion");
 }
diff --git a/libwvdrmengine/cdm/test/request_license_test.cpp b/libwvdrmengine/cdm/test/request_license_test.cpp
index e6794f6a..ad089154 100644
--- a/libwvdrmengine/cdm/test/request_license_test.cpp
+++ b/libwvdrmengine/cdm/test/request_license_test.cpp
@@ -4380,6 +4380,11 @@ TEST_F(WvCdmRequestLicenseTest, QueryStatus) {
                                    wvcdm::QUERY_KEY_OEMCRYPTO_BUILD_INFORMATION,
                                    &value));
   EXPECT_TRUE(!value.empty());
+
+  EXPECT_EQ(wvcdm::NO_ERROR,
+            decryptor_.QueryStatus(kLevelDefault,
+                                   wvcdm::QUERY_KEY_CURRENT_SRM_VERSION,
+                                   &value));
 }
 
 TEST_F(WvCdmRequestLicenseTest, QueryStatusL3) {