> ## Documentation Index
> Fetch the complete documentation index at: https://rootea.es/llms.txt
> Use this file to discover all available pages before exploring further.

# CVSS v3.1 vs v4.0

> Common Vulnerability Scoring System.

# CVSS v3.1 vs v4.0

<p className="glossary-answer">Common Vulnerability Scoring System.</p>

**Categoría:** [Frameworks & Estándares](/glosario)

🎯 **Concepto** — Common Vulnerability Scoring System. Numerical
severity (0.0-10.0). **v4.0** (2023): añade métrica `Attack
Requirements (AT)`, renombra Temporal → Threat, retira Remediation
Level y Report Confidence.

🔗 **Uso** — Calculadora oficial:
[first.org/cvss/calculator](https://www.first.org/cvss/calculator/4.0).

📊 **Diferencias clave** — v4.0 tiende a dar scores más altos:
33% de vulns score ≥8 vs 18% en v3.1 ([Mend](https://www.mend.io/blog/cvss-3-1-vs-cvss-4-0-a-look-at-the-data/)).

⚠️ **Falso amigo** — Adopción 2025 dispar: Palo Alto Networks
fue primero en publicar sólo en v4.0. Microsoft, Cisco, Oracle,
Red Hat siguen sólo en v3.1. CVSS 4.0 cambia interpretación de
escala — no comparable directamente con v3.1.

🛡️ **Best practice** — Reportes con AMBAS escalas durante
transición (2024-2027). Combinar siempre con EPSS y contexto
negocio.

***

← [Volver al glosario completo](/glosario)

<script type="application/ld+json">
  {`{"@context":"https://schema.org","@type":"DefinedTerm","name":"CVSS v3.1 vs v4.0","description":"Common Vulnerability Scoring System.","inDefinedTermSet":{"@type":"DefinedTermSet","name":"Glosario táctico de pentesting","url":"https://rootea.es/glosario"},"url":"https://rootea.es/glosario/cvss-v3-1-vs-v4-0"}`}
</script>

<script type="application/ld+json">
  {`{"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Inicio","item":"https://rootea.es"},{"@type":"ListItem","position":2,"name":"Glosario táctico","item":"https://rootea.es/glosario"},{"@type":"ListItem","position":3,"name":"CVSS v3.1 vs v4.0","item":"https://rootea.es/glosario/cvss-v3-1-vs-v4-0"}]}`}
</script>

*Última actualización: 2026-06-11*