CVE-2026-107159
MiniUPnPd through 2.3.11 Divide-by-Zero DoS via SSDP M-SEARCH MX Header
CVSS Score
6.5
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-369 |
| Vendor | miniupnp project |
| Product | miniupnpd |
| Published | Oct 7, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Attack Vector
Adjacent
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Affected Versions
miniupnp project / miniupnpd
0 ≤ 2.3.11
References
github.com: https://github.com/miniupnp/miniupnp/commit/8f13b7a5843f5270db684099c0a083f98869636a github.com: https://github.com/miniupnp/miniupnp github.com: https://github.com/miniupnp/miniupnp/blob/miniupnpd_2_3_11/miniupnpd/minissdp.c#L1143-L1158 github.com: https://github.com/miniupnp/miniupnp/blob/miniupnpd_2_3_11/miniupnpd/minissdp.c#L1281 vulncheck.com: https://www.vulncheck.com/advisories/miniupnpd-through-2.3.11-divide-by-zero-dos-via-ssdp-m-search-mx-header
Credits
azuk4r