---
cve: "CVE-2026-41292"
severity: "MEDIUM"
cvss: 6.6
epss: "72%"
vendor: "NLnet Labs"
kev: false
exploited: false
published: "2026-05-20 10:16:27"
tags: [cve, security, medium]
source: tsecurity.de CVE-Dossier
exported: "2026-09-11T02:30:53+02:00"
---

# CVE-2026-41292

> 6.6 MEDIUM

## Beschreibung

NLnet Labs Unbound up to and including version 1.25.0 is vulnerable to a degradation of service attack related to parsing long lists of incoming EDNS options. An adversary sending queries with too many EDNS options can hold Unbound threads hostage while they are parsing and creating internal data structures for the options. Coordinated attacks can result in degradation and/or denial of service. Unbound 1.25.1 contains a patch with a fix to limit acceptable incoming EDNS options (100).

## CVSS-Vektor

```
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Red
```

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Netzwerk | bad |
| AC Komplexität | Gering | bad |
| PR Privilegien | Keine | bad |
| UI Interaktion | Keine | bad |

## Patch verfügbar (OSV)

- 75b6dba593d4fff000434cd64807c6ebd50bd244 (Commit)

## Referenzen

- <https://www.nlnetlabs.nl/downloads/unbound/CVE-2026-41292.txt>
- <https://access.redhat.com/errata/RHSA-2026:24013>
- <https://access.redhat.com/errata/RHSA-2026:36320>
- <https://access.redhat.com/errata/RHSA-2026:36777>
- <https://access.redhat.com/errata/RHSA-2026:37282>
- <https://access.redhat.com/errata/RHSA-2026:54769>
- <https://access.redhat.com/security/cve/CVE-2026-41292>
- <https://bugzilla.redhat.com/show_bug.cgi?id=2480125>
- <https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-41292.json>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-41292) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_