---
id: CVE-2026-38819
title: >-
  Multiple memory leaks in openNDS before 11.0.0 allow an unauthenticated
  attacker on the captive portal network to exhaust all available memory on the
  device within minutes.
summary: >-
  Multiple memory leaks in openNDS before 11.0.0 allow an unauthenticated
  attacker on the captive portal network to exhaust all available memory on the
  device within minutes.
severity: medium
cvss: 5.3
cvssVector: 'CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H'
cwe:
  - CWE-401
published: '2026-08-28'
updated: '2026-09-09'
sourceUpdated: '2026-09-09T15:54:36.797'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-38819'
references:
  - url: >-
      https://github.com/openNDS/openNDS/commit/b2801d9f14af44a23be7e9a1c378623bc5947c4c
    label: cve@mitre.org
  - url: >-
      https://github.com/openNDS/openNDS/commit/f2332e68c6d34f8403db346e380fff3817020d5c
    label: cve@mitre.org
tags:
  - nvd
epss: 0.00256
epssPercentile: 0.15405
ingestedAt: '2026-09-09T16:14:05.517Z'
---

## Overview

Multiple memory leaks in openNDS before 11.0.0 allow an unauthenticated attacker on the captive portal network to exhaust all available memory on the device within minutes.

## Remediation

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