---
cve: "CVE-2020-28623"
severity: "CRITICAL"
cvss: 10.0
epss: "2.4%"
vendor: "CGAL Project"
kev: false
exploited: false
published: "2022-04-18 17:15:13"
tags: [cve, security, critical]
source: tsecurity.de CVE-Dossier
exported: "2026-10-08T18:27:04+02:00"
---

# CVE-2020-28623

> 10.0 CRITICAL

## Beschreibung

Multiple code execution vulnerabilities exists in the Nef polygon-parsing functionality of CGAL libcgal CGAL-5.1.1. A specially crafted malformed file can lead to an out-of-bounds read and type confusion, which could lead to code execution. An attacker can provide malicious input to trigger any of these vulnerabilities. An oob read vulnerability exists in Nef_S2/SNC_io_parser.h SNC_io_parser::read_facet() fh->twin().

## CISA-Anreicherung (vulnrichment/ADP)

- CISA-SSVC (Coordinator, v2.0.3):
  - Exploitation: **poc**
  - Automatable: **yes**
  - Technical Impact: **total**

## CVSS-Vektor

```
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
```

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Netzwerk | bad |
| AC Komplexität | Gering | bad |
| PR Privilegien | Keine | bad |
| UI Interaktion | Keine | bad |
| S Scope | Verändert | bad |
| C Vertraulichkeit | Hoch | bad |
| I Integrität | Hoch | bad |
| A Verfügbarkeit | Hoch | bad |

## Referenzen

- <https://talosintelligence.com/vulnerability_reports/TALOS-2020-1225>
- <https://lists.debian.org/debian-lts-announce/2022/12/msg00011.html>
- <https://security.gentoo.org/glsa/202305-34>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/sicherheitsluecken/cve-2020-28623/) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI WID (CSAF)_