---
license: cc0-1.0
language:
- en
task_categories:
- text-classification
tags:
- cyber-security
- vulnerability
- cve
- cwe
- cvss
- nvd
- tabular
- time-series
- risk-analysis
pretty_name: NVD CVE & CWE Vulnerability Dataset (1999-2025)
size_categories:
- 100K<n<1M
---

This collection brings together every Common Vulnerabilities & Exposures (CVE) entry published in the National Vulnerability Database (NVD) from the very first identifier — `CVE-1999-0001` — through all records available on **30 May 2025**.
It was built automatically with a **Python** script that calls the **NVD REST API v2.0** page-by-page, handles rate-limits, and **filters data**.

After download each CVE object is pared down to the essentials and written to **`CVE_CWE_2025.csv`** with the following columns:

| Column                          | Meaning                                                                                                |
| ------------------------------- | ------------------------------------------------------------------------------------------------------ |
| `ID`                            | Simple row index (starting at 1)                                                                       |
| `CVE-ID`                        | Official CVE identifier                                                                                |
| `CVSS-V4`, `CVSS-V3`, `CVSS-V2` | Base scores for the three CVSS generations; missing versions are stored as the string `"None"`         |
| `SEVERITY`                      | Qualitative severity (e.g. *LOW, MEDIUM, HIGH, CRITICAL*) taken from the newest CVSS version present   |
| `DESCRIPTION`                   | Normalised English description from the NVD feed                                                       |
| `CWE-ID`                        | Mapped Common Weakness Enumeration code (`CWE-###`) or `NVD-CWE-Other` when no specific mapping exists |

---

#### Possible uses

* **Exploratory analysis** of vulnerability trends over 25 years (e.g. growth of certain CWE classes or shifts in average CVSS score).
* **Machine-learning tasks** such as severity or CWE prediction from free-text descriptions.
* **Joining with product-specific SBOMs** or asset inventories to assess organisational exposure.
* Quick look-ups for **incident response**, education, security research, or reporting dashboards.