FIRSTdotorg/Vuln4Cast

Rewrite the NVD fetcher v4 so it only updates

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#10 opened on Jun 17, 2025

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good first issuewontfix

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Description

The code currently fetches all CVEs from NVD api. However, when it is run a second time, it could be using the modified time to update the pandas data frame instead of fetching all and overwriting. This would make the code much more efficient and as the CVEs grow, this will begin to mater a lot.

Contributor guide

Research direction
Understand the current NVD fetcher implementation and modify it to use modified timestamps to update the DataFrame incrementally.
Tech stack
pythonpandas
Domain
datasecurity
Issue type
Refactor
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
2
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
Half day
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Clear
Prerequisites
PythonGitpandas
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
70