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CVE-2026-107159— MiniUPnPd through 2.3.11 Divide-by-Zero DoS via SSDP M-SEARCH MX Header

Quick assessment

Affected
miniupnp project miniupnpd
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

MiniUPnPd（版本 2.3.11 及更早版本）在启用 --strict 编译选项时，ProcessSSDPData() 函数中存在一个除零漏洞。未认证的本地网络攻击者可以利用该漏洞导致守护进程崩溃。攻击者只需向端口 1900 发送一个包含 MX: 0 和已知 ST 字段的单播 M-SEARCH 数据包，即可触发 SIGFPE 信号，从而导致 UPnP IGD 服务不可用。

CVSS 6.5 · Medium

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service

Affected Version Matrix 1

VendorProduct Version RangeStatus
miniupnp project miniupnpd ≤ 2.3.11 affected
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I. Basic Information for CVE-2026-107159

Vulnerability Information
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Vulnerability Title
MiniUPnPd through 2.3.11 Divide-by-Zero DoS via SSDP M-SEARCH MX Header
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
除零错误
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
miniupnp project miniupnpd 0 ~ 2.3.11 -

II. Public POCs for CVE-2026-107159

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III. Intelligence Information for CVE-2026-107159

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Patches & Fixes for CVE-2026-107159 (1)

Vendor Advisories for CVE-2026-107159 (1)

IV. Related Vulnerabilities

Same product: miniupnpd
Same vendor: miniupnp project
Same weakness: CWE-369

V. Comments for CVE-2026-107159

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