---
cve: "CVE-2020-7456"
severity: "MEDIUM"
cvss: 6.8
epss: "5.3%"
vendor: "Linux"
kev: false
exploited: false
published: "2020-06-09 19:15:10"
tags: [cve, security, medium]
source: tsecurity.de CVE-Dossier
exported: "2026-09-12T03:20:49+02:00"
---

# CVE-2020-7456

> 6.8 MEDIUM

## Beschreibung

In FreeBSD 12.1-STABLE before r361918, 12.1-RELEASE before p6, 11.4-STABLE before r361919, 11.3-RELEASE before p10, and 11.4-RC2 before p1, an invalid memory location may be used for HID items if the push/pop level is not restored within the processing of that HID item allowing an attacker with physical access to a USB port to be able to use a specially crafted USB device to gain kernel or user-space code execution.

## CVSS-Vektor

```
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
```

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

## Referenzen

- <https://security.FreeBSD.org/advisories/FreeBSD-SA-20:17.usb.asc>
- <https://security.netapp.com/advisory/ntap-20200625-0005/>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2020-7456) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_