---
cve: "CVE-2026-12246"
severity: "HIGH"
cvss: 7.2
epss: "30%"
vendor: "NLnet Labs"
kev: false
exploited: false
published: "2026-06-25 07:16:45"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-09-08T15:46:31+02:00"
---

# CVE-2026-12246

> 7.2 HIGH

## Beschreibung

NSD version 4.14.0 introduced a bug where a specially crafted APL RR, with an adflength larger than permitted for the address family will overwrite the stack when the zone is written to disk, with a maximum of 111 attacker controlled bytes.

## CVSS-Vektor

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

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

## Patch verfügbar (OSV)

- fc930b88cb4f628defae9835449065945bda7ddc (Commit)

## Referenzen

- <https://www.nlnetlabs.nl/downloads/nsd/CVE-2026-12246.txt>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-12246) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_