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CVE Lookup Free

Look up a CVE: description, severity, and whether it is known-exploited.

Open CVE Lookup →


What it does

Resolves a CVE identifier to its description, CVSS severity and — critically — whether CISA lists it as known-exploited.

When to use it

Inputs

Field names are the actual form parameters, verified against source.

FieldTypeRequiredNotes
cve text required CVE ID, e.g. CVE-2026-1234.

What you get back

Description, CVSS, references, KEV status.

Worked example

Input

CVE-2021-44228

Output (abridged)

CVE-2021-44228 -- Log4Shell
  CVSS     10.0 CRITICAL
  KEV      YES -- added 2021-12-10
  Affects  Apache Log4j 2.0-beta9 -> 2.14.1

  Remote code execution via JNDI lookup in a logged string. Trivially
  exploitable: an attacker only needs their input to reach a log call.

  KEV = exploited in the wild. That single field should dominate your
  patch order far more than the CVSS number beside it.

How it works

Deterministic lookup against NVD and CISA KEV data.

Limits

Read live from the platform configuration.

Rate limit30 requests / 60s (platform default)

Limitations — what it does not do

It reports published data. A vulnerability with no CVE, or one published after the last feed refresh, will not appear.

Privacy

Nothing is stored.

Standards

CVECVSSCISA KEV

Related tools

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