diff --git a/test/data/issue_1827_poc.crw b/test/data/issue_1827_poc.crw
new file mode 100644
index 00000000..eafb7623
Binary files /dev/null and b/test/data/issue_1827_poc.crw differ
diff --git a/tests/bugfixes/github/test_issue_1827.py b/tests/bugfixes/github/test_issue_1827.py
new file mode 100644
index 00000000..3f9c4eaf
--- /dev/null
+++ b/tests/bugfixes/github/test_issue_1827.py
@@ -0,0 +1,17 @@
+# -*- coding: utf-8 -*-
+
+from system_tests import CaseMeta, CopyTmpFiles, path, check_no_ASAN_UBSAN_errors
+
+class ExposureTimeCastDoubleToLong(metaclass=CaseMeta):
+    """
+    Regression test for the bug described in:
+    https://github.com/Exiv2/exiv2/issues/1827
+    """
+    url = "https://github.com/Exiv2/exiv2/issues/1827"
+
+    filename = path("$data_path/issue_1827_poc.crw")
+    commands = ["$exiv2 $filename"]
+    stderr = [""]
+    retval = [0]
+
+    compare_stdout = check_no_ASAN_UBSAN_errors