---
cve: "CVE-2026-16445"
severity: "HIGH"
cvss: 7.5
epss: "99%"
vendor: "Red Hat"
kev: false
exploited: false
published: "2026-07-21 13:17:16"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-08-31T21:28:45+02:00"
---

# CVE-2026-16445

> 7.5 HIGH · 🧪 PoC

## Beschreibung

A flaw was found in dracut. A remote attacker on the adjacent network can exploit this vulnerability by providing specially crafted DHCP options, such as a malicious root-path, next-server, or bootfile name, to a system using dracut's NetworkManager-based initrd network module. These options are improperly handled and written into a temporary shell script without proper escaping, leading to command injection. This allows the attacker to achieve root code execution within the initramfs during system boot.

## CVSS-Vektor

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

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

## Patch verfügbar (OSV)

- e509c638e6 (Commit)

## Referenzen

- <https://access.redhat.com/errata/RHSA-2026:26534>
- <https://access.redhat.com/errata/RHSA-2026:40700>
- <https://access.redhat.com/security/cve/CVE-2026-16445>
- <https://bugzilla.redhat.com/show_bug.cgi?id=2459963>
- <https://bugzilla.redhat.com/show_bug.cgi?id=2503147>
- <https://github.com/dracutdevs/dracut/commit/e509c638e6>
- <https://access.redhat.com/errata/RHSA-2026:61252>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-16445) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_