---
cve: "CVE-2026-4480"
severity: "CRITICAL"
cvss: 9.0
epss: "13.9%"
vendor: "Red Hat"
kev: false
exploited: false
published: "2026-05-26 15:16:40"
tags: [cve, security, critical]
source: tsecurity.de CVE-Dossier
exported: "2026-09-03T11:01:16+02:00"
---

# CVE-2026-4480

> 9.0 CRITICAL

## Beschreibung

A flaw was found in the Samba printing subsystem. Samba passes the client-controlled job description string to the command configured with the "print command" setting via the "%J"
substitution character without escaping shell meta characters. A remote attacker could exploit this vulnerability by sending a specially crafted print job description that contains unescaped shell characters. This could lead to remote code execution on the affected system.

## CVSS-Vektor

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

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

## Patch verfügbar (OSV)

- c2633a95a88f5f777fc94a25a07f1faa47420fc5 (Commit)

## Referenzen

- <https://access.redhat.com/errata/RHSA-2026:22644>
- <https://access.redhat.com/errata/RHSA-2026:22963>
- <https://access.redhat.com/errata/RHSA-2026:25049>
- <https://access.redhat.com/errata/RHSA-2026:25979>
- <https://access.redhat.com/errata/RHSA-2026:28053>
- <https://access.redhat.com/errata/RHSA-2026:28054>
- <https://access.redhat.com/errata/RHSA-2026:28055>
- <https://access.redhat.com/errata/RHSA-2026:28056>
- <https://access.redhat.com/errata/RHSA-2026:28057>
- <https://access.redhat.com/errata/RHSA-2026:28058>
- <https://access.redhat.com/errata/RHSA-2026:28132>
- <https://access.redhat.com/security/cve/CVE-2026-4480>
- <https://bugzilla.redhat.com/show_bug.cgi?id=2452232>
- <https://bugzilla.samba.org/show_bug.cgi?id=16033>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-4480) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_
