DEBIAN-CVE-2025-50681

See a problem?
Please try reporting it to the source first.

Source

https://security-tracker.debian.org/tracker/CVE-2025-50681

Import Source

https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2025-50681.json

JSON Data

https://api.osv.dev/v1/vulns/DEBIAN-CVE-2025-50681

Upstream

CVE-2025-50681

Published

2025-12-19T15:15:55Z

Modified

2026-09-01T20:05:53Z

Severity

7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator

Summary

[none]

Details

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 .

References

https://security-tracker.debian.org/tracker/CVE-2025-50681

Affected packages

Debian:12 / igmpproxy

Package

Name: igmpproxy
Purl: pkg:deb/debian/igmpproxy?arch=source&distro=bookworm

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Affected versions

0.*

0.3-1

0.3-2

Ecosystem specific

{
    "urgency": "not yet assigned"
}

Database specific

source

"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2025-50681.json"

Debian:13 / igmpproxy