---
id: CVE-2026-121511
title: Out-of-bounds Read in µD3TN
summary: >-
  Heap Out-of-Bounds Read in µD3TN BPv6/BPv7 Fragmenter allows Local Attacker to
  Read Memory and Reliably Cause DoS
severity: high
cvss: 7.1
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H'
cvssSource: cna
cwe:
  - CWE-125
vendor: D3TN GmbH
product: µD3TN
affected:
  - µD3TN < 0.15.2
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-11-03T15:16:06.013948Z'
published: '2026-11-03'
updated: '2026-11-03'
sourceUpdated: '2026-11-03T15:29:27.660Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-121511'
references:
  - url: 'https://gitlab.com/d3tn/ud3tn/-/work_items/290'
tags:
  - cve.org
epss: 0.00144
epssPercentile: 0.0374
ingestedAt: '2026-11-05T19:30:42.984Z'
---

## Overview

Heap Out-of-Bounds Read in µD3TN BPv6/BPv7 Fragmenter allows Local Attacker to Read Memory and Reliably Cause DoS

## Affected

- `µD3TN < 0.15.2`

## Remediation

Upgrade to version 0.15.2 or above.