---
id: CVE-2026-107159
title: >-
  MiniUPnPd through 2.3.11 built with --strict contains a divide-by-zero
  vulnerability in ProcessSSDPData() that allows unauthenticated local network
  attackers to crash the daemon
summary: >-
  MiniUPnPd through 2.3.11 built with --strict contains a divide-by-zero
  vulnerability in ProcessSSDPData() that allows unauthenticated local network
  attackers to crash the daemon. Attackers can send a single multicast M-SEARCH
  datagram wi…
severity: medium
cvss: 6.5
cvssVector: 'CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'
cwe:
  - CWE-369
vendor: miniupnp project
product: miniupnpd
affected:
  - miniupnpd <= 2.3.11
published: '2026-10-07'
updated: '2026-10-07'
sourceUpdated: '2026-10-07T12:17:09.283'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-107159'
references:
  - url: 'https://github.com/miniupnp/miniupnp'
    label: disclosure@vulncheck.com
  - url: >-
      https://github.com/miniupnp/miniupnp/blob/miniupnpd_2_3_11/miniupnpd/minissdp.c#L1143-L1158
    label: disclosure@vulncheck.com
  - url: >-
      https://github.com/miniupnp/miniupnp/blob/miniupnpd_2_3_11/miniupnpd/minissdp.c#L1281
    label: disclosure@vulncheck.com
  - url: >-
      https://github.com/miniupnp/miniupnp/commit/8f13b7a5843f5270db684099c0a083f98869636a
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/miniupnpd-through-2.3.11-divide-by-zero-dos-via-ssdp-m-search-mx-header
    label: disclosure@vulncheck.com
tags:
  - nvd
  - cve.org
ingestedAt: '2026-10-07T12:29:01.368Z'
---

## Overview

MiniUPnPd through 2.3.11 built with --strict contains a divide-by-zero vulnerability in ProcessSSDPData() that allows unauthenticated local network attackers to crash the daemon. Attackers can send a single multicast M-SEARCH datagram with MX: 0 and a known ST to port 1900, triggering SIGFPE and denying UPnP IGD service.

## Remediation

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