Datasets:

CIRCL
/

Vulnerability-CNVD

Languages:

Chinese

ArXiv:

Tags:

vulnerability

cybersecurity

cnvd

severity-classification

License:

Dataset card Files Files and versions

xet

Community

Dataset Viewer

The dataset viewer is not available for this subset.

Cannot get the split names for the config 'default' of the dataset.

Exception:    HfHubHTTPError
Message:      504 Server Error: Gateway Time-out for url: https://huggingface.co/api/datasets/CIRCL/Vulnerability-CNVD/paths-info/ab91bb7c72d25a54e357cb4ed833951c4912dc23
Traceback:    Traceback (most recent call last):
                File "/src/services/worker/src/worker/job_runners/config/split_names.py", line 66, in compute_split_names_from_streaming_response
                  for split in get_dataset_split_names(
                               ^^^^^^^^^^^^^^^^^^^^^^^^
                File "/usr/local/lib/python3.12/site-packages/datasets/inspect.py", line 340, in get_dataset_split_names
                  info = get_dataset_config_info(
                         ^^^^^^^^^^^^^^^^^^^^^^^^
                File "/usr/local/lib/python3.12/site-packages/datasets/inspect.py", line 268, in get_dataset_config_info
                  builder = load_dataset_builder(
                            ^^^^^^^^^^^^^^^^^^^^^
                File "/usr/local/lib/python3.12/site-packages/datasets/load.py", line 1315, in load_dataset_builder
                  dataset_module = dataset_module_factory(
                                   ^^^^^^^^^^^^^^^^^^^^^^^
                File "/usr/local/lib/python3.12/site-packages/datasets/load.py", line 1207, in dataset_module_factory
                  raise e1 from None
                File "/usr/local/lib/python3.12/site-packages/datasets/load.py", line 1182, in dataset_module_factory
                  ).get_module()
                    ^^^^^^^^^^^^
                File "/usr/local/lib/python3.12/site-packages/datasets/load.py", line 639, in get_module
                  data_files = DataFilesDict.from_patterns(
                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
                File "/usr/local/lib/python3.12/site-packages/datasets/data_files.py", line 723, in from_patterns
                  else DataFilesList.from_patterns(
                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
                File "/usr/local/lib/python3.12/site-packages/datasets/data_files.py", line 616, in from_patterns
                  resolve_pattern(
                File "/usr/local/lib/python3.12/site-packages/datasets/data_files.py", line 372, in resolve_pattern
                  for filepath, info in fs.glob(fs_pattern, detail=True, **glob_kwargs).items():
                                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
                File "/usr/local/lib/python3.12/site-packages/huggingface_hub/hf_file_system.py", line 521, in glob
                  return super().glob(path, **kwargs)
                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
                File "/usr/local/lib/python3.12/site-packages/fsspec/spec.py", line 604, in glob
                  allpaths = self.find(root, maxdepth=depth, withdirs=True, detail=True, **kwargs)
                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
                File "/usr/local/lib/python3.12/site-packages/huggingface_hub/hf_file_system.py", line 556, in find
                  return super().find(
                         ^^^^^^^^^^^^^
                File "/usr/local/lib/python3.12/site-packages/fsspec/spec.py", line 495, in find
                  out[path] = self.info(path)
                              ^^^^^^^^^^^^^^^
                File "/usr/local/lib/python3.12/site-packages/huggingface_hub/hf_file_system.py", line 719, in info
                  paths_info = self._api.get_paths_info(
                               ^^^^^^^^^^^^^^^^^^^^^^^^^
                File "/usr/local/lib/python3.12/site-packages/huggingface_hub/utils/_validators.py", line 114, in _inner_fn
                  return fn(*args, **kwargs)
                         ^^^^^^^^^^^^^^^^^^^
                File "/usr/local/lib/python3.12/site-packages/huggingface_hub/hf_api.py", line 3371, in get_paths_info
                  hf_raise_for_status(response)
                File "/usr/local/lib/python3.12/site-packages/huggingface_hub/utils/_http.py", line 482, in hf_raise_for_status
                  raise _format(HfHubHTTPError, str(e), response) from e
              huggingface_hub.errors.HfHubHTTPError: 504 Server Error: Gateway Time-out for url: https://huggingface.co/api/datasets/CIRCL/Vulnerability-CNVD/paths-info/ab91bb7c72d25a54e357cb4ed833951c4912dc23

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Vulnerability-CNVD

Vulnerability descriptions and severity labels from the China National Vulnerability Database (CNVD), extracted via Vulnerability-Lookup.

Dataset structure

Field	Type	Description
`id`	string	CNVD identifier (e.g., CNVD-2025-03529)
`title`	string	Vulnerability title in Chinese
`description`	string	Vulnerability description in Chinese
`severity`	string	Severity level: 高 (High), 中 (Medium), or 低 (Low)
`cve_id`	string	Corresponding CVE identifier, if available (empty string if none)

Severity distribution

The dataset is imbalanced:

Severity	Chinese	Approximate share
High	高	~36%
Medium	中	~55%
Low	低	~9%

CVE overlap

Approximately 81% of CNVD entries have a corresponding CVE identifier. The overlap rate varies by year:

2020-2021: 68-69% CVE mapping rate
2022+: 91-97% CVE mapping rate

The ~19% of CNVD-only entries are concentrated in Chinese domestic software (PHP CMS, ERP systems). Western vendors (Adobe, Microsoft, IBM, Cisco) are largely absent from the CNVD-only subset.

Coverage and provenance

CNVD reserves 50,000-100,000 vulnerability IDs per year but publishes full details for only a fraction. The publication rate has declined significantly:

2015: ~94% of reserved IDs have published details
2023: ~4% of reserved IDs have published details

This decline coincides with China's Regulations on the Management of Security Vulnerabilities (RMSV), effective September 2021.

Entries without a description or severity label are excluded from this dataset.

Duplicate descriptions

CNVD reuses boilerplate descriptions across different vulnerability IDs (product-specific entries sharing the same text). When using this dataset for train/test splits, split on unique description text rather than on IDs to avoid data leakage. See VulnTrain#19 for details.