CVE-2025-50681

igmpproxy 0.4 before commit 2b30c36 allows remote attackers to cause a denial of service (application crash) via a crafted IGMPv3 membership report packet with a malicious source address. Due to insufficient validation in the `recv_igmp()` function in src/igmpproxy.c, an invalid group record type can trigger a NULL pointer dereference when logging the address using `inet_fmtsrc()`. This vulnerability can be exploited by sending malformed multicast traffic to a host running igmpproxy, leading to a crash. igmpproxy is used in various embedded networking environments and consumer-grade IoT devices (such as home routers and media gateways) to handle multicast traffic for IPTV and other streaming services. Affected devices that rely on unpatched versions of igmpproxy may be vulnerable to remote denial-of-service attacks across a LAN .
Configurations

Configuration 1 (hide)

cpe:2.3:a:pali:igmpproxy:0.4:*:*:*:*:*:*:*

History

02 Jan 2026, 14:45

Type Values Removed Values Added
First Time Pali igmpproxy
Pali
References () https://gist.github.com/miora-sora/dac1612d16c45c2aedb8605478adc28f - () https://gist.github.com/miora-sora/dac1612d16c45c2aedb8605478adc28f - Third Party Advisory
References () https://github.com/pali/igmpproxy/issues/97 - () https://github.com/pali/igmpproxy/issues/97 - Exploit, Patch, Issue Tracking
References () https://github.com/younix/igmpproxy/commit/2b30c36e6ab5b21defb76ec6458ab7687984484c - () https://github.com/younix/igmpproxy/commit/2b30c36e6ab5b21defb76ec6458ab7687984484c - Patch
CPE cpe:2.3:a:pali:igmpproxy:0.4:*:*:*:*:*:*:*

19 Dec 2025, 16:15

Type Values Removed Values Added
CVSS v2 : unknown
v3 : unknown
v2 : unknown
v3 : 7.5
References () https://github.com/pali/igmpproxy/issues/97 - () https://github.com/pali/igmpproxy/issues/97 -
CWE CWE-120

19 Dec 2025, 15:15

Type Values Removed Values Added
New CVE

Information

Published : 2025-12-19 15:15

Updated : 2026-01-02 14:45


NVD link : CVE-2025-50681

Mitre link : CVE-2025-50681

CVE.ORG link : CVE-2025-50681


JSON object : View

Products Affected

pali

  • igmpproxy
CWE
CWE-120

Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')