---
id: CVE-2026-71832
title: >-
  Aria2 version 1.37.0 and below is affected by a Divide By Zero issue in
  src/bittorrent_helper.cc, which allows a remote malicious user to cause a
  Denial of Service
summary: >-
  Aria2 version 1.37.0 and below is affected by a Divide By Zero issue in
  src/bittorrent_helper.cc, which allows a remote malicious user to cause a
  Denial of Service
severity: medium
cvss: 6.2
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'
cwe:
  - CWE-369
published: '2026-08-24'
updated: '2026-09-08'
sourceUpdated: '2026-09-08T19:29:09.680'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-71832'
references:
  - url: 'https://github.com/aria2/aria2/issues/2371'
    label: cve@mitre.org
tags:
  - nvd
epss: 0.00118
epssPercentile: 0.01941
ingestedAt: '2026-09-08T20:10:03.158Z'
---

## Overview

Aria2 version 1.37.0 and below is affected by a Divide By Zero issue in src/bittorrent_helper.cc, which allows a remote malicious user to cause a Denial of Service

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.