---
cve: "CVE-2026-11788"
severity: "MEDIUM"
cvss: 5.9
epss: "58%"
vendor: "Red Hat"
kev: false
exploited: false
published: "2026-06-09 14:16:36"
tags: [cve, security, medium]
source: tsecurity.de CVE-Dossier
exported: "2026-09-03T04:55:01+02:00"
---

# CVE-2026-11788

> 5.9 MEDIUM

## Beschreibung

A flaw was found in 389 Directory Server. The dereference control plugin does not check for allocation failure before using a BER structure, allowing an unauthenticated remote attacker to crash the LDAP server when the system is under memory pressure.

## CVSS-Vektor

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

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

## Referenzen

- <https://access.redhat.com/errata/RHSA-2026:55421>
- <https://access.redhat.com/errata/RHSA-2026:55422>
- <https://access.redhat.com/errata/RHSA-2026:55423>
- <https://access.redhat.com/errata/RHSA-2026:55424>
- <https://access.redhat.com/errata/RHSA-2026:55425>
- <https://access.redhat.com/errata/RHSA-2026:55426>
- <https://access.redhat.com/errata/RHSA-2026:55530>
- <https://access.redhat.com/errata/RHSA-2026:55532>
- <https://access.redhat.com/errata/RHSA-2026:55756>
- <https://access.redhat.com/errata/RHSA-2026:55757>
- <https://access.redhat.com/errata/RHSA-2026:55758>
- <https://access.redhat.com/errata/RHSA-2026:55794>
- <https://access.redhat.com/errata/RHSA-2026:56047>
- <https://access.redhat.com/errata/RHSA-2026:56048>
- <https://access.redhat.com/errata/RHSA-2026:56050>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-11788) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_