CVE-2026-107159 PUBLISHED

MiniUPnPd through 2.3.11 Divide-by-Zero DoS via SSDP M-SEARCH MX Header

Assigner: VulnCheck
Reserved: 07.10.2026 Published: 07.10.2026 Updated: 07.10.2026

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.

CVSS Vector: CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
CVSS Score: 7.1

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Adjacent	Confidentiality	None	Confidentiality	None
Attack Complexity	Low	Integrity	None	Integrity	None
Attack Requirements	None	Availability	High	Availability	None
Privileges Required	None
User Interaction	None

CVSS 4.0

CVSS Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS Score: 6.5

Attack Vector	Adjacent Network	Scope	Unchanged
Attack Complexity	Low	Confidentiality Impact	None
Privileges Required	None	Integrity Impact	None
User Interaction	None	Availability Impact	High

CVSS 3.1

Product Status

Vendor	miniupnp project
Product	miniupnpd
Versions	Default: unaffected affected from 0 to 2.3.11 (incl.)

CVE-2026-107159 PUBLISHED

MiniUPnPd through 2.3.11 Divide-by-Zero DoS via SSDP M-SEARCH MX Header

Metrics

Product Status

Credits

References

Problem Types