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Vulnerabilities

Vulnerability · 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 a

Published Dec 19, 2025 · catalog updated Dec 19, 2025 · igmpproxy 0.4 before commit

Last checked Nov 2, 2026. A connected source was read within the last 7 days.

Check if you run it

No confirmed exploitation is on record for CVE-2025-50681. EPSS is 0.52%. Act only if a listed version of igmpproxy 0.4 before commit is installed.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (igmpproxy 0.4 before commit).
  • No version range is stored. A customer cannot check an installed version against this record.
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.

Same product and reporting

Severity
High7.5
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.52%
Remediation
Vendor / distro source
Affected products
vendor n/a n/a n/a

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 function in src/igmpproxy.c, an invalid group record type can trigger a NULL pointer dereference when logging the address using . 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 m

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • vendor n/a n/a n/an/a

How to fix CVE-2025-50681

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2025-50681. EPSS is 0.52%. Act only if a listed version of igmpproxy 0.4 before commit is installed.

Which versions are affected?

Compare what you have installed with n/a n/a n/a n/a. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 0.52%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. Dec 19, 2025 · EUVD

    Detected

    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 function in src/igmpproxy.c, an invalid group record type can trigger a NULL pointer dereference when logging the address using . This vulnerability can be exploited by sendi

  2. Dec 19, 2025 · EUVD

    Updated

    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 function in src/igmpproxy.c, an invalid group record type can trigger a NULL pointer dereference when logging the address using . This vulnerability can be exploited by sendi

Sources

  • CVE.orgVulnerability recordCVE-2025-50681

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2025-50681

    30-day exploitation probability 0.52%

    first.org
  • EUVDVulnerability recordEUVD-2025-204534

    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 function in src/igmpproxy.c, an invalid group record t

    euvd.enisa.europa.eu

References

Freshness

Last verified in this catalog Nov 2, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • FIRST EPSSNov 2, 2026
  • CVE.orgNov 2, 2026
  • EUVDNov 1, 2026