diff --git a/libmspack/mspack/cabd.c b/libmspack/mspack/cabd.c
index 780d69e..65c87c4 100644
--- a/libmspack/mspack/cabd.c
+++ b/libmspack/mspack/cabd.c
@@ -346,6 +346,8 @@ static int cabd_read_headers(struct mspack_system *sys,
   cab->base.set_id    = EndGetI16(&buf[cfhead_SetID]);
   cab->base.set_index = EndGetI16(&buf[cfhead_CabinetIndex]);
 
+  unsigned long long cfile_offset = (unsigned long long) EndGetI32(&buf[cfhead_FileOffset]);
+
   /* get the number of folders */
   num_folders = EndGetI16(&buf[cfhead_NumFolders]);
   if (num_folders == 0) {
@@ -439,6 +441,13 @@ static int cabd_read_headers(struct mspack_system *sys,
     linkfol = fol;
   }
 
+  if ((unsigned long long)(sys->tell(fh) - cab->base.base_offset) < cfile_offset
+      && cfile_offset < (unsigned long long)cab->base.length) {
+    if (sys->seek(fh, cfile_offset, MSPACK_SYS_SEEK_START)) {
+        return MSPACK_ERR_SEEK;
+    }
+  }
+
   /* read files */
   for (i = 0; i < num_files; i++) {
     if (sys->read(fh, &buf[0], cffile_SIZEOF) != cffile_SIZEOF) {