---
cve: "CVE-2026-17255"
severity: "MEDIUM"
cvss: 4.3
epss: "0.4%"
vendor: "IBM"
kev: false
exploited: false
published: "2026-09-04 16:39:08"
tags: [cve, security, medium]
source: tsecurity.de CVE-Dossier
exported: "2026-09-21T12:20:29+02:00"
---

# CVE-2026-17255

> 4.3 MEDIUM

## Beschreibung

IBM i 7.6, 7.5, 7.4, and 7.3 could allow a remote attacker to cause a denial of service due to improper validation of the prefix length in ICMPv6 Router Advertisements.

## CVSS-Vektor

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

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

## Referenzen

- <https://www.ibm.com/support/pages/node/7286093>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-17255) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_