---
id: CVE-2026-121513
title: Out-of-bounds Write in µD3TN
summary: >-
  Off-by-one Heap Overflow in µD3TN v0.15.1 SPP Parser allows Unauthenticated
  Remote Attacker to Reliably Cause DoS
severity: high
cvss: 7.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'
cvssSource: cna
cwe:
  - CWE-787
vendor: D3TN GmbH
product: µD3TN
affected:
  - µD3TN < 0.15.2
ssvc:
  exploitation: none
  automatable: 'yes'
  technicalImpact: partial
  timestamp: '2026-11-03T15:16:22.436247Z'
published: '2026-11-03'
updated: '2026-11-03'
sourceUpdated: '2026-11-03T15:29:27.373Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-121513'
references:
  - url: 'https://gitlab.com/d3tn/ud3tn/-/work_items/288'
tags:
  - cve.org
epss: 0.00442
epssPercentile: 0.38645
ingestedAt: '2026-11-05T19:30:42.983Z'
---

## Overview

Off-by-one Heap Overflow in µD3TN v0.15.1 SPP Parser allows Unauthenticated Remote Attacker to Reliably Cause DoS

## Affected

- `µD3TN < 0.15.2`

## Remediation

Upgrade to version 0.15.2 or above.