diff --git a/NEWS b/NEWS
index d3e2ed88a..44183827a 100644
--- a/NEWS
+++ b/NEWS
@@ -1,5 +1,7 @@
 ver 0.23.11 (not yet released)
 * macOS: fix build failure "no archive members specified"
+* Windows
+  - fix crash bug (stack buffer overflow) after I/O errors
 * Android/Windows
   - update OpenSSL to 3.0.7
 
diff --git a/src/system/Error.hxx b/src/system/Error.hxx
index aa017966b..b6b5c1fc1 100644
--- a/src/system/Error.hxx
+++ b/src/system/Error.hxx
@@ -70,8 +70,11 @@ FormatLastError(DWORD code, const char *fmt, Args&&... args) noexcept
 {
 	char buffer[512];
 	const auto end = buffer + sizeof(buffer);
-	size_t length = snprintf(buffer, sizeof(buffer) - 128,
+	constexpr std::size_t max_prefix = sizeof(buffer) - 128;
+	size_t length = snprintf(buffer, max_prefix,
 				 fmt, std::forward<Args>(args)...);
+	if (length >= max_prefix)
+		length = max_prefix - 1;
 	char *p = buffer + length;
 	*p++ = ':';
 	*p++ = ' ';