diff --git a/decoder/ih264d_sei.c b/decoder/ih264d_sei.c
index 079f036..e7d436c 100644
--- a/decoder/ih264d_sei.c
+++ b/decoder/ih264d_sei.c
@@ -853,6 +853,14 @@ WORD32 ih264d_parse_fgc(dec_bit_stream_t *ps_bitstrm, dec_struct_t *ps_dec,
 
                 for(i = 0; i <= ps_sei->s_sei_fgc_params.au1_num_intensity_intervals_minus1[c]; i++)
                 {
+                    /* Although the fag end of both the NALU and the bitstream buffer */
+                    /* is being parsed, not all FGC SEI symbols would have been */
+                    /* decoded semantically. The code below detects this condition */
+                    if((ps_bitstrm->u4_ofst + 8 + 8) >= ps_bitstrm->u4_max_ofst)
+                    {
+                        return ERROR_INV_SEI_FGC_PARAMS;
+                    }
+
                     ps_sei->s_sei_fgc_params.au1_intensity_interval_lower_bound[c][i] =
                         (UWORD8) ih264d_get_bits_h264(ps_bitstrm, 8);
 
diff --git a/decoder/mvc/imvcd_api.c b/decoder/mvc/imvcd_api.c
index 3e95a80..1026fc8 100644
--- a/decoder/mvc/imvcd_api.c
+++ b/decoder/mvc/imvcd_api.c
@@ -737,7 +737,9 @@ static IV_API_CALL_STATUS_T imvcd_view_decode(iv_obj_t *ps_dec_hdl, imvcd_video_
 
             if(u4_nalu_buf_size > u4_bitstream_buf_size)
             {
-                if(IV_SUCCESS != imvcd_bitstream_buf_realloc(ps_view_ctxt, u4_nalu_buf_size))
+                /* 64 extra bytes to account for OOB accesses during SEI parsing in */
+                /* some fuzzer bitstreams */
+                if(IV_SUCCESS != imvcd_bitstream_buf_realloc(ps_view_ctxt, u4_nalu_buf_size + 64))
                 {
                     return IV_FAIL;
                 }